var_dump /eurovoc /concepts/667
object(Concept)#4135 (1) {
  ["_c":protected]=>
  array(7) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100221)
    }
    ["prefLabel"]=>
    object(MLString)#4136 (1) {
      ["_c":protected]=>
      array(2) {
        ["en"]=>
        array(1) {
          [0]=>
          string(10) "publishing"
        }
        ["fr"]=>
        array(1) {
          [0]=>
          string(8) "édition"
        }
      }
    }
    ["altLabel"]=>
    object(MLString)#4137 (1) {
      ["_c":protected]=>
      array(2) {
        ["en"]=>
        array(2) {
          [0]=>
          string(28) "distribution of publications"
          [1]=>
          string(19) "publishing industry"
        }
        ["fr"]=>
        array(2) {
          [0]=>
          string(26) "diffusion des publications"
          [1]=>
          string(23) "industrie de l'édition"
        }
      }
    }
    ["broader"]=>
    array(1) {
      [0]=>
      int(1370)
    }
    ["narrower"]=>
    array(4) {
      [0]=>
      int(1745)
      [1]=>
      int(6110)
      [2]=>
      int(6104)
      [3]=>
      int(5569)
    }
    ["related"]=>
    array(2) {
      [0]=>
      int(2153)
      [1]=>
      int(2859)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(667)
    }
  }
}