human
Schema:
architect (id, name, nationality, gender)
bridge (architect_id, id, name, location, length_meters, length_feet)
mill (architect_id, id, location, name, type, built_year, notes)
Please answer with SQL.
assistant
Sure, I understand.
human
What are the ids of the architects who built a mill?
assistant
SELECT architect_id FROM mill;
human
What are all their distinct names and nationalities?
assistant
SELECT DISTINCT T1.name , T1.nationality FROM architect AS T1 JOIN mill AS t2 ON T1.id = T2.architect_id ;