var_dump /eurovoc /concepts/5298
object(Concept)#11524 (1) {
  ["_c":protected]=>
  array(5) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100224)
    }
    ["prefLabel"]=>
    object(MLString)#11525 (1) {
      ["_c":protected]=>
      array(2) {
        ["en"]=>
        array(1) {
          [0]=>
          string(20) "fundamental particle"
        }
        ["fr"]=>
        array(1) {
          [0]=>
          string(23) "particule élémentaire"
        }
      }
    }
    ["altLabel"]=>
    object(MLString)#11526 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(4) {
          [0]=>
          string(6) "photon"
          [1]=>
          string(6) "proton"
          [2]=>
          string(9) "électron"
          [3]=>
          string(7) "neutron"
        }
        ["en"]=>
        array(5) {
          [0]=>
          string(8) "electron"
          [1]=>
          string(19) "elementary particle"
          [2]=>
          string(7) "neutron"
          [3]=>
          string(6) "photon"
          [4]=>
          string(6) "proton"
        }
      }
    }
    ["broader"]=>
    array(1) {
      [0]=>
      int(2376)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(5298)
    }
  }
}