Hi, Can you tell me the most common builder of railways?
select builder from railway group by builder order by count ( * ) desc limit 1
Can you tell me the last railways this builder has build?
select railway from railway group by builder having builder = "GWR Swindon" order by built desc limit 1
In what year was GWRSn build?
select built from railway group by builder having builder = "GWR Swindon" order by built desc limit 1