What are the Wikimedia set index article which start with the letter typhoon
SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q15623926 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'typhoon')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
wikimedia set index article: Q15623926