What is the longest bridge that crosses the Schuylkill River?
select ?ent where { ?ent wdt:P31 wd:Q12570 . ?ent wdt:P1314 ?obj . ?ent wdt:P177 wd:Q605122 } ORDER BY DESC(?obj)LIMIT 5 
suspension bridge: Q12570 schuylkill river: Q605122