{
  "l1_classes": [
    "Agricultural and Veterinary Sciences",
    "Engineering and Technology",
    "Humanities and the Arts",
    "Medical and Health Sciences",
    "Natural Sciences",
    "Social Sciences"
  ],
  "l2_classes": [
    "Agriculture, Forestry, and Fisheries",
    "Animal and Dairy Science",
    "Arts (arts, history of arts, performing arts, music)",
    "Basic Medicine",
    "Biological Sciences",
    "Chemical Engineering",
    "Chemical Sciences",
    "Civil Engineering",
    "Clinical Medicine",
    "Computer and Information Sciences",
    "Earth and Related Environmental Sciences",
    "Economics and Business",
    "Education",
    "Electrical Engineering, Electronic Engineering, Information Engineering",
    "Environmental Engineering",
    "Health Sciences",
    "History and Archaeology",
    "Languages and Literature",
    "Law",
    "Materials Engineering",
    "Mathematics",
    "Mechanical Engineering",
    "Media and Communications",
    "Medical Biotechnology",
    "Medical Engineering",
    "Philosophy, Ethics and Religion",
    "Physical Sciences",
    "Political Science",
    "Psychology and Cognitive Sciences",
    "Social and Economic Geography",
    "Sociology",
    "Veterinary Science"
  ],
  "paper_type_classes": [
    "case-study",
    "commentary",
    "empirical",
    "erratum",
    "meta-analysis",
    "retraction",
    "review"
  ]
}