Tell me the tungsten alloy that has an effect on tungsten carbide exposure and contains the word carbide in it's name?
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q37789249 . ?sbj wdt:P1542 wd:Q21175402 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'carbide')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
tungsten alloy: Q37789249 tungsten carbide exposure: Q21175402