Tell me novel series whose name has the word twilight  in it.
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q1667921 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'twilight')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
novel series: Q1667921