Question: Which is the roof shape which contains the word tower in it's name?
Paraphrase: Which is the rooftop shape which contains the word tower in it's name?
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q1156686 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'tower')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: central tower with small towers, central tower with small towers, cross roof tower, cross roof tower