user: Question: Where is the club that was founded in 1946 located that has an Unknown coach?
Columns: ['Team', 'Coach', 'Home Ground', 'Location', 'Founded']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['Adelaide Cobras', 'Kris Trajanovski', 'Weigall Oval', 'Plympton', 1972.0]
SQL:

assistant: SELECT "Location" FROM "Table" WHERE "Coach" = 'Unknown' AND "Founded" = 1946.0;