var_dump /eurovoc /concepts/2857
object(Concept)#9666 (1) {
  ["_c":protected]=>
  array(8) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100234)
    }
    ["prefLabel"]=>
    object(MLString)#9667 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(1) {
          [0]=>
          string(22) "psychologie du travail"
        }
        ["en"]=>
        array(1) {
          [0]=>
          string(23) "occupational psychology"
        }
      }
    }
    ["altLabel"]=>
    object(MLString)#9668 (1) {
      ["_c":protected]=>
      array(1) {
        ["en"]=>
        array(3) {
          [0]=>
          string(21) "industrial psychology"
          [1]=>
          string(18) "psychology of work"
          [2]=>
          string(15) "work psychology"
        }
      }
    }
    ["scopeNote"]=>
    object(MLString)#9669 (1) {
      ["_c":protected]=>
      array(2) {
        ["en"]=>
        array(1) {
          [0]=>
          string(90) "The branch of psychology concerned with the working environment and personnel management.
"
        }
        ["fr"]=>
        array(1) {
          [0]=>
          string(93) "Branche de la psychologie qui s'applique au milieu de travail et à la gestion du personnel.
"
        }
      }
    }
    ["broader"]=>
    array(1) {
      [0]=>
      int(855)
    }
    ["narrower"]=>
    array(3) {
      [0]=>
      int(3907)
      [1]=>
      int(4439)
      [2]=>
      int(5339)
    }
    ["related"]=>
    array(1) {
      [0]=>
      int(2856)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(2857)
    }
  }
}