{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/97533290"
      "properties" : {
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        "http://www.w3.org/ns/prov#value" : [ "SPF does not and can not block spam. it has a different purpose. it prevents some email address forgeries. its main use is to allow a domain owner (e.g. an individual or an organisation or a corporation such as a bank) to specify exactly which hosts are allowed to send mail claiming to be from that domain. in other words, it can be used to block forgeries such as phishing spams and viruses, but it is" ] ,
        "http://www.w3.org/ns/prov#wasQuotedFrom" : [ "slashdot.org" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/314287337"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/97533290" ] } },

    { "id" : "http://webisa.webdatacommons.org/prov/418499909"
      "properties" : {
        "http://www.w3.org/ns/prov#wasDerivedFrom" : [ "http://webisa.webdatacommons.org/97533290"] } } }
