{ "items" : [
    { "id" : "http://caligraph.org/ontology/Arsenic_compound"
      "properties" : {
        "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" : [ "http://www.w3.org/2002/07/owl#Class" ] ,
        "http://www.w3.org/2000/01/rdf-schema#label" : [ "Arsenic compound" ] ,
        "http://www.w3.org/2000/01/rdf-schema#subClassOf" : [ "http://caligraph.org/ontology/Chemical_compound" ] ,
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://en.wikipedia.org/wiki/Category:Arsenic_compounds" ] } },

    { "id" : "http://caligraph.org/ontology/Arsenic(V)_compound"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#subClassOf" : [ "http://caligraph.org/ontology/Arsenic_compound" ] } },

    { "id" : "http://caligraph.org/ontology/Arsenic(%E2%88%92III)_compound"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#subClassOf" : [ "http://caligraph.org/ontology/Arsenic_compound" ] } },

    { "id" : "http://caligraph.org/ontology/Organoarsenic_compound"
      "properties" : {
        "http://www.w3.org/2000/01/rdf-schema#subClassOf" : [ "http://caligraph.org/ontology/Arsenic_compound"] } } }
