Question: Which referendum following the Thirty-First Amendment of the Constitution of Ireland received the most votes ?
Paraphrase: Which referendum following the Thirty-First Amendment of the Constitution of Ireland was given the most votes ?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q54086790 . ?ent wdt:P1111 ?obj . ?ent wdt:P155 wd:Q4310000 } ORDER BY DESC(?obj)LIMIT 5