Question: What are the stellar evolution which start with the letter k
Paraphrase: What are the stellar advancement which begin with the letter k
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q6472 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'k')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: kilonova, kilonova