What is the legislature of a Mexican state with the lowest number of constituencies whose instance of is unicameral legislature ?
select ?ent where { ?ent wdt:P31 wd:Q17680584 . ?ent wdt:P4253 ?obj . ?ent wdt:P31 wd:Q37002670} ORDER BY ASC(?obj)LIMIT 5 
legislature of a mexican state: Q17680584 unicameral legislature: Q37002670