var_dump /eurovoc /concepts/5649
object(Concept)#7370 (1) {
  ["_c":protected]=>
  array(6) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100183)
    }
    ["prefLabel"]=>
    object(MLString)#7371 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(1) {
          [0]=>
          string(30) "frontière extérieure de l'UE"
        }
        ["en"]=>
        array(1) {
          [0]=>
          string(25) "external border of the EU"
        }
      }
    }
    ["altLabel"]=>
    object(MLString)#7372 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(3) {
          [0]=>
          string(47) "frontière extérieure de l’Union européenne"
          [1]=>
          string(44) "gestion des frontières extérieures de l'UE"
          [2]=>
          string(61) "gestion des frontières extérieures de l’Union européenne"
        }
        ["en"]=>
        array(4) {
          [0]=>
          string(56) "management of the external borders of the European Union"
          [1]=>
          string(38) "external borders of the European Union"
          [2]=>
          string(39) "management of the EU's external borders"
          [3]=>
          string(51) "management of the European Union's external borders"
        }
      }
    }
    ["broader"]=>
    array(1) {
      [0]=>
      int(1114)
    }
    ["related"]=>
    array(2) {
      [0]=>
      int(6222)
      [1]=>
      int(8439)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(5649)
    }
  }
}