Question: Name the quantum particle with the least amount of magnetic moment that is part of the isotope of neutronium?
Paraphrase: Which isotope of neutronium has the least amount of magnetic moment?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q22675015 . ?ent wdt:P2069 ?obj . ?ent wdt:P31 wd:Q12525553} ORDER BY ASC(?obj)LIMIT 5 
Answer: neutron