{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/438719978"
      "properties" : {
        "http://www.w3.org/1999/02/22-rdf-syntax-ns#type" : [ "http://www.w3.org/ns/prov#Entity" ] ,
        "http://www.w3.org/ns/prov#value" : [ "Given a submanifold $N$ of $M$, under what conditions is there a sort of canonical relation between the standard contact structures of $J^1 N$ and $J^1 M$? and in what terms is it expressed?" ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "mathoverflow.net" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/413360941"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/438719978"] } } }
