{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/prov/420926711"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/217960921" ] } },

    { "id" : "http://webisa.webdatacommons.org/217960921"
      "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" : [ "means for initiating and halting a scanning sequence, adjusting system parameters such as imaging depth, transducer power output and system gain. Subprograms can also be provided which allow the operator to make measurements on the images collected, and" ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "docstoc.com" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/123982225"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/217960921"] } } }
