Question: Which aircraft has the longest wingspan with conventional landing gear?
Paraphrase: Which aircraft has the longest wingspan with traditional landing gear?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q15061018 . ?ent wdt:P2050 ?obj . ?ent wdt:P1637 wd:Q2874355 } ORDER BY DESC(?obj)LIMIT 5