Array ( [1] => Array ( [group_name] => Item Type [group_slug] => item-type [tags] => Array ( [106] => Array ( [tag_name] => Drawing [tag_slug] => drawing )))[2] => Array ( [group_name] => Style [group_slug] => style [tags] => Array ( [211] => Array ( [tag_name] => Abstract [tag_slug] => abstract-item )))[3] => Array ( [group_name] => Period [group_slug] => period [tags] => Array ( [307] => Array ( [tag_name] => 21st Century [tag_slug] => 21st Century )))[4] => Array ( [group_name] => Subject [group_slug] => subject [tags] => Array ( [403] => Array ( [tag_name] => Abstract [tag_slug] => abstract-subject ))))