var_dump /eurovoc /concepts/1638
object(Concept)#7817 (1) {
  ["_c":protected]=>
  array(6) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100232)
    }
    ["prefLabel"]=>
    object(MLString)#7818 (1) {
      ["_c":protected]=>
      array(2) {
        ["en"]=>
        array(1) {
          [0]=>
          string(27) "freedom to provide services"
        }
        ["fr"]=>
        array(1) {
          [0]=>
          string(28) "libre prestation de services"
        }
      }
    }
    ["altLabel"]=>
    object(MLString)#7819 (1) {
      ["_c":protected]=>
      array(2) {
        ["en"]=>
        array(1) {
          [0]=>
          string(25) "free movement of services"
        }
        ["fr"]=>
        array(2) {
          [0]=>
          string(34) "liberté de prestation de services"
          [1]=>
          string(30) "libre circulation des services"
        }
      }
    }
    ["broader"]=>
    array(1) {
      [0]=>
      int(2454)
    }
    ["related"]=>
    array(7) {
      [0]=>
      int(1633)
      [1]=>
      int(3299)
      [2]=>
      int(4021)
      [3]=>
      int(4099)
      [4]=>
      int(2788)
      [5]=>
      int(2602)
      [6]=>
      int(1626)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(1638)
    }
  }
}