Question: Tell me the pair of enantiomers that is a disjoint union of the list values as qualifiers and starts with the letter n?
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q55662747 . ?sbj wdt:P2738 wd:Q23766486 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'n')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25