protected function getType($prefixedType, ContextInterface $context)
    {
        $defaultVocabulary = $context->getDefaultVocabulary();
        if ($defaultVocabulary && strpos($prefixedType, $defaultVocabulary->getUri()) === 0) {
            $prefixedType = substr($prefixedType, strlen($defaultVocabulary->getUri()));
        }
        return parent::getType($prefixedType, $context);
    }