var_dump /eurovoc /concepts/3749
object(Concept)#8350 (1) {
  ["_c":protected]=>
  array(5) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100264)
    }
    ["prefLabel"]=>
    object(MLString)#8351 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(1) {
          [0]=>
          string(21) "exploitation minière"
        }
        ["en"]=>
        array(1) {
          [0]=>
          string(16) "mining operation"
        }
      }
    }
    ["altLabel"]=>
    object(MLString)#8352 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(4) {
          [0]=>
          string(9) "carrière"
          [1]=>
          string(27) "exploitation à ciel ouvert"
          [2]=>
          string(24) "exploitation souterraine"
          [3]=>
          string(4) "mine"
        }
        ["en"]=>
        array(4) {
          [0]=>
          string(11) "deep mining"
          [1]=>
          string(4) "mine"
          [2]=>
          string(13) "open-cast pit"
          [3]=>
          string(6) "quarry"
        }
      }
    }
    ["broader"]=>
    array(1) {
      [0]=>
      int(1411)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(3749)
    }
  }
}