Question: which isotop of lead has the minimum parity that make it a nuclear isomer?
Paraphrase: which isotope of lead is the nuclear isomer?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q1372384 . ?ent wdt:P1123 ?obj . ?ent wdt:P31 wd:Q846110} ORDER BY ASC(?obj)LIMIT 5 
Answer: lead-187m, lead-202m1, lead-203m2, lead-204m1, lead-183m