protected function _getPropertyType(Zend_Reflection_Property $prop)
    {
        $docBlock = $prop->getDocComment();

        if (!$docBlock) {
            return 'Unknown';
        }

        if (!$docBlock->hasTag('var')) {
            return 'Unknown';
        }

        $tag = $docBlock->getTag('var');
        return trim($tag->getDescription());
    }