var_dump /eurovoc /concepts/3324
object(Concept)#16820 (1) {
  ["_c":protected]=>
  array(7) {
    ["inScheme"]=>
    array(2) {
      [0]=>
      int(100141)
      [1]=>
      int(100210)
    }
    ["prefLabel"]=>
    object(MLString)#16821 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(1) {
          [0]=>
          string(31) "vieillissement de la population"
        }
        ["en"]=>
        array(1) {
          [0]=>
          string(17) "population ageing"
        }
      }
    }
    ["altLabel"]=>
    object(MLString)#16822 (1) {
      ["_c":protected]=>
      array(2) {
        ["en"]=>
        array(2) {
          [0]=>
          string(24) "ageing of the population"
          [1]=>
          string(18) "demographic ageing"
        }
        ["fr"]=>
        array(1) {
          [0]=>
          string(29) "vieillissement démographique"
        }
      }
    }
    ["definition"]=>
    object(MLString)#16823 (1) {
      ["_c":protected]=>
      array(2) {
        ["fr"]=>
        array(1) {
          [0]=>
          string(74) "Augmentation du nombre de vieillards par rapport à la population totale.
"
        }
        ["en"]=>
        array(1) {
          [0]=>
          string(69) "Increase in the proportion of older persons in the total population.
"
        }
      }
    }
    ["broader"]=>
    array(1) {
      [0]=>
      int(3318)
    }
    ["related"]=>
    array(1) {
      [0]=>
      int(2333)
    }
    ["notation"]=>
    array(1) {
      [0]=>
      int(3324)
    }
  }
}