Question: Which essential medicine  contains the word vincristine in their name
Paraphrase: Which necessary medicine contains the phrase vincristine in their title
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q35456 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'vincristine')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: vincristine, vincristine