{ "items" : [ { "id" : "http://webisa.webdatacommons.org/concept/radiograph_comparison_" "properties" : { "http://www.w3.org/2000/01/rdf-schema#label" : [ "radiograph comparison" ] , "http://webisa.webdatacommons.org/ontology#hasHead" : [ "comparison" ] , "http://webisa.webdatacommons.org/ontology#hasPreModifier" : [ "radiograph"] } } }