LICENSE

Attribution 4.0 International

=======================================================================

Creative Commons Corporation ("Creative Commons") is not a law firm and
does not provide legal services or legal advice. Distribution of Creative
Commons public licenses does not create a lawyer-client or other
relationship. Creative Commons makes its licenses and related information
available on an "as-is" basis. Creative Commons gives no warranties
regarding its licenses, any material licensed under their terms and
conditions, or any related information. Creative Commons disclaims all
liability for damages resulting from their use to the fullest extent
possible.

Using Creative Commons Public Licenses

Creative Commons public licenses provide a standard set of terms and
conditions that creators and other rights holders may use to share
original works of authorship and other material subject to copyright and
certain other rights specified in the public license below. The following
considerations are for informational purposes only, are not exhaustive,
and do not form part of our licenses.

     Considerations for licensors: Our public licenses are intended for
     use by those authorized to give the public permission to use material
     in ways otherwise restricted by copyright and certain other rights.
     Our licenses are irrevocable. Licensors should read and understand
     the terms and conditions of the license they choose before applying
     it. Licensors should also secure all rights necessary before applying
     our licenses so that the public can reuse the material as expected.
     Licensors should clearly mark any material not subject to the license.
     This includes other CC-licensed material, or material used under an
     exception or limitation to copyright. More considerations for
     licensors:
     wiki.creativecommons.org/Considerations_for_licensors

     Considerations for the public: By using one of our public licenses,
     a licensor grants the public permission to use the licensed material
     under specified terms and conditions. If the licensor's permission is
     not necessary for any reason--for example, because of any applicable
     exception or limitation to copyright--then that use is not regulated
     by the license. Our licenses grant only permissions under copyright
     and certain other rights that a licensor has authority to grant. Use
     of the licensed material may still be restricted for other reasons,
     including because others have copyright or other rights in the
     material. A licensor may make special requests, such as asking that
     all changes be marked or described. Although not required by our
     licenses, you are encouraged to respect those requests where
     reasonable. More considerations for the public:
     wiki.creativecommons.org/Considerations_for_licensees

=======================================================================

Creative Commons Attribution 4.0 International Public License

By exercising the Licensed Rights (defined below), You accept and agree
to be bound by the terms and conditions of this Creative Commons
Attribution 4.0 International Public License ("Public License"). To the
extent this Public License may be interpreted as a contract, You are
granted the Licensed Rights in consideration of Your acceptance of these
terms and conditions, and the Licensor grants You such rights in
consideration of benefits the Licensor receives from making the Licensed
Material available under these terms and conditions.

Section 1 -- Definitions.

a. Adapted Material means material subject to Copyright and Similar Rights
   that is derived from or based upon the Licensed Material and in which
   the Licensed Material is translated, altered, arranged, transformed, or
   otherwise modified in a manner requiring permission under the Copyright
   and Similar Rights held by the Licensor. For purposes of this Public
   License, where the Licensed Material is a musical work, performance, or
   sound recording, Adapted Material is always produced where the Licensed
   Material is synched in timed relation with a moving image.

b. Adapter's License means the license You apply to Your Copyright and
   Similar Rights in Your contributions to Adapted Material in accordance
   with the terms and conditions of this Public License.

c. Copyright and Similar Rights means copyright and/or similar rights
   closely related to copyright including, without limitation, performance,
   broadcast, sound recording, and Sui Generis Database Rights, without
   regard to how the rights are labeled or categorized. For purposes of
   this Public License, the rights specified in Section 2(b)(1)-(2) are
   not Copyright and Similar Rights.

d. Effective Technological Measures means those measures that, in the
   absence of proper authority, may not be circumvented under laws
   fulfilling obligations under Article 11 of the WIPO Copyright Treaty
   adopted on December 20, 1996, and/or similar international agreements.

e. Exceptions and Limitations means fair use, fair dealing, and/or any
   other exception or limitation to Copyright and Similar Rights that
   applies to Your use of the Licensed Material.

f. Licensed Material means the artistic or literary work, database, or
   other material to which the Licensor applied this Public License.

g. Licensed Rights means the rights granted to You subject to the terms
   and conditions of this Public License, which are limited to all
   Copyright and Similar Rights that apply to Your use of the Licensed
   Material and that the Licensor has authority to license.

h. Licensor means the individual(s) or entity(ies) granting rights under
   this Public License.

i. Share means to provide material to the public by any means or process
   that requires permission under the Licensed Rights, such as reproduction,
   public display, public performance, distribution, dissemination,
   communication, or importation, and to make material available to the
   public including in ways that members of the public may access the
   material from a place and at a time individually chosen by them.

j. Sui Generis Database Rights means rights other than copyright resulting
   from Directive 96/9/EC of the European Parliament and of the Council of
   11 March 1996 on the legal protection of databases, as amended and/or
   succeeded, as well as other essentially equivalent rights anywhere in
   the world.

k. You means the individual or entity exercising the Licensed Rights under
   this Public License. Your has a corresponding meaning.

Section 2 -- Scope.

a. License grant.

   1. Subject to the terms and conditions of this Public License, the
      Licensor hereby grants You a worldwide, royalty-free,
      non-sublicensable, non-exclusive, irrevocable license to exercise
      the Licensed Rights in the Licensed Material to:

      A. reproduce and Share the Licensed Material, in whole or in part;
         and

      B. produce, reproduce, and Share Adapted Material.

   2. Exceptions and Limitations. For the avoidance of doubt, where
      Exceptions and Limitations apply to Your use, this Public License
      does not apply, and You do not need to comply with its terms and
      conditions.

   3. Term. The term of this Public License is specified in Section 6(a).

   4. Media and formats; technical modifications allowed. The Licensor
      authorizes You to exercise the Licensed Rights in all media and
      formats whether now known or hereafter created, and to make technical
      modifications necessary to do so. The Licensor waives and/or agrees
      not to assert any right or authority to forbid You from making
      technical modifications necessary to exercise the Licensed Rights,
      including technical modifications necessary to circumvent Effective
      Technological Measures. For purposes of this Public License, simply
      making modifications authorized by this Section 2(a)(4) never
      produces Adapted Material.

   5. Downstream recipients.

      A. Offer from the Licensor -- Licensed Material. Every recipient of
         the Licensed Material automatically receives an offer from the
         Licensor to exercise the Licensed Rights under the terms and
         conditions of this Public License.

      B. No downstream restrictions. You may not offer or impose any
         additional or different terms or conditions on, or apply any
         Effective Technological Measures to, the Licensed Material if doing
         so restricts exercise of the Licensed Rights by any recipient of
         the Licensed Material.

   6. No endorsement. Nothing in this Public License constitutes or may be
      construed as permission to assert or imply that You are, or that Your
      use of the Licensed Material is, connected with, or sponsored,
      endorsed, or granted official status by, the Licensor or others
      designated to receive attribution as provided in Section 3(a)(1)(A)(i).

b. Other rights.

   1. Moral rights, such as the right of integrity, are not licensed under
      this Public License, nor are publicity, privacy, and/or other similar
      personality rights; however, to the extent possible, the Licensor
      waives and/or agrees not to assert any such rights held by the
      Licensor to the limited extent necessary to allow You to exercise the
      Licensed Rights, but not otherwise.

   2. Patent and trademark rights are not licensed under this Public
      License.

   3. To the extent possible, the Licensor waives any right to collect
      royalties from You for the exercise of the Licensed Rights, whether
      directly or through a collecting society under any voluntary or
      waivable statutory or compulsory licensing scheme. In all other cases
      the Licensor expressly reserves any right to collect such royalties.

Section 3 -- License Conditions.

Your exercise of the Licensed Rights is expressly made subject to the
following conditions.

a. Attribution.

   1. If You Share the Licensed Material (including in modified form), You
      must:

      A. retain the following if it is supplied by the Licensor with the
         Licensed Material:

         i. identification of the creator(s) of the Licensed Material and
            any others designated to receive attribution, in any reasonable
            manner requested by the Licensor (including by pseudonym if
            designated);

         ii. a copyright notice;

         iii. a notice that refers to this Public License;

         iv. a notice that refers to the disclaimer of warranties;

         v. a URI or hyperlink to the Licensed Material to the extent
            reasonably practicable;

      B. indicate if You modified the Licensed Material and retain an
         indication of any previous modifications; and

      C. indicate the Licensed Material is licensed under this Public
         License, and include the text of, or the URI or hyperlink to, this
         Public License.

   2. You may satisfy the conditions in Section 3(a)(1) in any reasonable
      manner based on the medium, means, and context in which You Share the
      Licensed Material. For example, it may be reasonable to satisfy the
      conditions by providing a URI or hyperlink to a resource that includes
      the required information.

   3. If requested by the Licensor, You must remove any of the information
      required by Section 3(a)(1)(A) to the extent reasonably practicable.

   4. If You Share Adapted Material You produce, the Adapter's License You
      apply must not prevent recipients of the Adapted Material from
      complying with this Public License.

Section 4 -- Sui Generis Database Rights.

Where the Licensed Rights include Sui Generis Database Rights that apply
to Your use of the Licensed Material:

a. for the avoidance of doubt, Section 2(a)(1) grants You the right to
   extract, reuse, reproduce, and Share all or a substantial portion of the
   contents of the database;

b. if You include all or a substantial portion of the database contents in
   a database in which You have Sui Generis Database Rights, then the
   database in which You have Sui Generis Database Rights (but not its
   individual contents) is Adapted Material; and

c. You must comply with the conditions in Section 3(a) if You Share all or
   a substantial portion of the contents of the database.

For the avoidance of doubt, this Section 4 supplements and does not replace
Your obligations under this Public License where the Licensed Rights include
other Copyright and Similar Rights.

Section 5 -- Disclaimer of Warranties and Limitation of Liability.

a. UNLESS OTHERWISE SEPARATELY UNDERTAKEN BY THE LICENSOR, TO THE EXTENT
   POSSIBLE, THE LICENSOR OFFERS THE LICENSED MATERIAL AS-IS AND
   AS-AVAILABLE, AND MAKES NO REPRESENTATIONS OR WARRANTIES OF ANY KIND
   CONCERNING THE LICENSED MATERIAL, WHETHER EXPRESS, IMPLIED, STATUTORY,
   OR OTHER. THIS INCLUDES, WITHOUT LIMITATION, WARRANTIES OF TITLE,
   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, NON-INFRINGEMENT,
   ABSENCE OF LATENT OR OTHER DEFECTS, ACCURACY, OR THE PRESENCE OR
   ABSENCE OF ERRORS, WHETHER OR NOT KNOWN OR DISCOVERABLE. WHERE
   DISCLAIMERS OF WARRANTIES ARE NOT ALLOWED IN FULL OR IN PART, THIS
   DISCLAIMER MAY NOT APPLY TO YOU.

b. TO THE EXTENT POSSIBLE, IN NO EVENT WILL THE LICENSOR BE LIABLE TO YOU
   ON ANY LEGAL THEORY (INCLUDING, WITHOUT LIMITATION, NEGLIGENCE) OR
   OTHERWISE FOR ANY DIRECT, SPECIAL, INDIRECT, INCIDENTAL, CONSEQUENTIAL,
   PUNITIVE, EXEMPLARY, OR OTHER LOSSES, COSTS, EXPENSES, OR DAMAGES
   ARISING OUT OF THIS PUBLIC LICENSE OR USE OF THE LICENSED MATERIAL,
   EVEN IF THE LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
   LOSSES, COSTS, EXPENSES, OR DAMAGES. WHERE A LIMITATION OF LIABILITY IS
   NOT ALLOWED IN FULL OR IN PART, THIS LIMITATION MAY NOT APPLY TO YOU.

c. The disclaimer of warranties and limitation of liability provided above
   shall be interpreted in a manner that, to the extent possible, most
   closely approximates an absolute disclaimer and waiver of all liability.

Section 6 -- Term and Termination.

a. This Public License applies for the term of the Copyright and Similar
   Rights licensed here. However, if You fail to comply with this Public
   License, then Your rights under this Public License terminate
   automatically.

b. Where Your right to use the Licensed Material has terminated under
   Section 6(a), it reinstates:

   1. automatically as of the date the violation is cured, provided it is
      cured within 30 days of Your discovery of the violation; or

   2. upon express reinstatement by the Licensor.

   For the avoidance of doubt, this Section 6(b) does not affect any right
   the Licensor may have to seek remedies for Your violations of this Public
   License.

c. For the avoidance of doubt, the Licensor may also offer the Licensed
   Material under separate terms or conditions or stop distributing the
   Licensed Material at any time; however, doing so will not terminate this
   Public License.

d. Sections 1, 5, 6, 7, and 8 survive termination of this Public License.

Section 7 -- Other Terms and Conditions.

a. The Licensor shall not be bound by any additional or different terms or
   conditions communicated by You unless expressly agreed.

b. Any arrangements, understandings, or agreements regarding the Licensed
   Material not stated herein are separate from and independent of the
   terms and conditions of this Public License.

Section 8 -- Interpretation.

a. For the avoidance of doubt, this Public License does not, and shall not
   be interpreted to, reduce, limit, restrict, or impose conditions on any
   use of the Licensed Material that could lawfully be made without
   permission under this Public License.

b. To the extent possible, if any provision of this Public License is deemed
   unenforceable, it shall be automatically reformed to the minimum extent
   necessary to make it enforceable. If the provision cannot be reformed,
   it shall be severed from this Public License without affecting the
   enforceability of the remaining terms and conditions.

c. No term or condition of this Public License will be waived and no failure
   to comply consented to unless expressly agreed to by the Licensor.

d. Nothing in this Public License constitutes or may be interpreted as a
   limitation upon, or waiver of, any privileges and immunities that apply
   to the Licensor or You, including from the legal processes of any
   jurisdiction or authority.

=======================================================================

Creative Commons is not a party to its public licenses.
Notwithstanding, Creative Commons may elect to apply one of its public
licenses to material it publishes and in those instances will be considered
the "Licensor." The text of the Creative Commons public licenses is
dedicated to the public domain under the CC0 Public Domain Dedication.
Except for the limited purpose of indicating that material is shared under
a Creative Commons public license or as otherwise permitted by the Creative
Commons policies published at creativecommons.org/policies, Creative
Commons does not authorize the use of the trademark "Creative Commons" or
any other trademark or logo of Creative Commons without its prior written
consent including, without limitation, in connection with any unauthorized
modifications to any of its public licenses or any other arrangements,
understandings, or agreements concerning use of licensed material. For the
avoidance of doubt, this paragraph does not form part of the public
licenses.

Creative Commons may be contacted at creativecommons.org.