[ {
  "name" : "Concomitant Medication",
  "description" : "Compound Role is Concomitant Medication.",
  "link" : "http://purl.obolibrary.org/obo/NCIT_C49568"
},{
  "name" : "Intervention",
  "description" : "Compound Role is Intervention.",
  "link" : "http://www.ebi.ac.uk/efo/EFO_0002571"
},{
  "name" : "Other",
  "description" : "Compound Role is Other.",
  "link" : null
},{
  "name" : "Substance Use",
  "description" : "Compound Role is Substance Use.",
  "link" : "http://purl.bioontology.org/ontology/MEDDRA/10070964"
} ]