Which antinucleon quantum particle has the highest isospin quantum number?
select ?ent where { ?ent wdt:P31 wd:Q22675015 . ?ent wdt:P1126 ?obj . ?ent wdt:P279 wd:Q28855250 } ORDER BY DESC(?obj)LIMIT 5 
type of quantum particle: Q22675015 antinucleon: Q28855250