<?PHP
declare(strict_types = 1);
$topic = array (
  'material_technique' => 'Material /Technique',
  'measurements' => 'Measurements',
  'when' => 'When',
  'where' => 'Where',
  'who' => 'Who',
  'object_from' => 'Object from',
  'original_entry' => 'Original entry',
  'literature' => 'Literature',
);