What is the constituency of the Parliament of the United Kingdom with the most number of representatives in an organization/legislature whose country is United Kingdom of Great Britain and Ireland?
select ?ent where { ?ent wdt:P31 wd:Q27971968 . ?ent wdt:P1410 ?obj . ?ent wdt:P17 wd:Q174193 } ORDER BY DESC(?obj)LIMIT 5 
constituency of the house of commons: Q27971968 united kingdom of great britain and ireland: Q174193