What is the name of the crude drug that contains monoclinic crystal system and has gypsium in its name?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q735160 . ?sbj wdt:P556 wd:Q624543 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'gypsum')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
crude drug: Q735160 monoclinic crystal system: Q624543