Hi there!  Can you show me the name of the architect who built the most mills?
select t1.name from architect as t1 join mill as t2 on t1.id = t2.architect_id group by t1.id order by count ( * ) desc limit 1
Awesome!  Can you update this list to also include the architect ID and nationality of this individual?
select t1.id, t1.name, t1.nationality from architect as t1 join mill as t2 on t1.id = t2.architect_id group by t1.id order by count ( * ) desc limit 1
Thank you!  Can you please show me a list of all of the mill names that were built by Frank Lloyd Wright?
select t2.name from architect as t1 join mill as t2 on t1.id = t2.architect_id where t1.name = 'Frank lloyd Wright'