SELECT DISTINCT T1.name ,  T1.nationality FROM architect AS T1 JOIN mill AS t2 ON T1.id  =  T2.architect_id
What are the distinct names and nationalities of the architects who have ever built a mill?
SELECT DISTINCT T1.name , T1.nationality FROM architect AS T1 JOIN mill AS t2 ON T1.id = T2.architect_id
select distinct t1 . name , t1 . nationality from architect as t1 join mill as t2 on t1 . id = t2 . architect_id
What are the distinct names and nationalities of the architects who have ever built a mill ?