var_dump /eurovoc /concepts/6083
object(Concept)#9162 (1) {
  ["_c":protected]=>
  array(6) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100285)
    }
    ["prefLabel"]=>
    object(MLString)#9163 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(1) {
          [0]=>
          string(70) "Conférence des Nations unies sur l'environnement et le développement"
        }
        ["en"]=>
        array(1) {
          [0]=>
          string(44) "UN Conference on Environment and Development"
        }
      }
    }
    ["altLabel"]=>
    object(MLString)#9164 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(4) {
          [0]=>
          string(5) "CNUED"
          [1]=>
          string(18) "Conférence de Rio"
          [2]=>
          string(18) "Sommet de la Terre"
          [3]=>
          string(21) "Sommet planète Terre"
        }
        ["en"]=>
        array(4) {
          [0]=>
          string(12) "Earth Summit"
          [1]=>
          string(10) "Rio Summit"
          [2]=>
          string(5) "UNCED"
          [3]=>
          string(56) "United Nations Conference on Environment and Development"
        }
      }
    }
    ["broader"]=>
    array(1) {
      [0]=>
      int(4365)
    }
    ["related"]=>
    array(2) {
      [0]=>
      int(5585)
      [1]=>
      int(91)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(6083)
    }
  }
}