Question: What is the atomic nucleus with the lowest isospin quantum number whose followed by is triton?
Paraphrase: Give the atomic nucleus with the lowest isospin quantum number that precedes triton.
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q37147 . ?ent wdt:P1126 ?obj . ?ent wdt:P156 wd:Q488424} ORDER BY ASC(?obj)LIMIT 5