translation-value-sets/iw/title_types_set.php

<?PHP
$title_types_set[''] = ' ';
$title_types_set['Science'] = 'Science';
$title_types_set['Everyday speech'] = 'Everyday speech';
$title_types_set['Colloquial speech'] = 'Colloquial speech';
$title_types_set['Dialect'] = 'Dialect';