{ "items" : [
    { "id" : "http://webisa.webdatacommons.org/concept/_group_"
      "properties" : {
        "http://www.w3.org/2004/02/skos/core#broader" : [ "http://webisa.webdatacommons.org/concept/group_difference_" ] } },

    { "id" : "http://webisa.webdatacommons.org/concept/_number_"
      "properties" : {
        "http://www.w3.org/2004/02/skos/core#broader" : [ "http://webisa.webdatacommons.org/concept/group_difference_" ] } },

    { "id" : "http://webisa.webdatacommons.org/concept/_interaction_"
      "properties" : {
        "http://www.w3.org/2004/02/skos/core#broader" : [ "http://webisa.webdatacommons.org/concept/group_difference_" ] } },

    { "id" : "http://webisa.webdatacommons.org/concept/_iq_"
      "properties" : {
        "http://www.w3.org/2004/02/skos/core#broader" : [ "http://webisa.webdatacommons.org/concept/group_difference_" ] } },

    { "id" : "http://webisa.webdatacommons.org/concept/_difference_"
      "properties" : {
        "http://www.w3.org/2004/02/skos/core#broader" : [ "http://webisa.webdatacommons.org/concept/group_difference_" ] } },

    { "id" : "http://webisa.webdatacommons.org/concept/_ethnicity_"
      "properties" : {
        "http://www.w3.org/2004/02/skos/core#broader" : [ "http://webisa.webdatacommons.org/concept/group_difference_" ] } },

    { "id" : "http://webisa.webdatacommons.org/concept/_gender_"
      "properties" : {
        "http://www.w3.org/2004/02/skos/core#broader" : [ "http://webisa.webdatacommons.org/concept/group_difference_"] } } }
