Database: financial (difficulty: simple)
Question: Who is the OWNER of the account with the largest loan amount?
SQL: SELECT T1.client_id FROM disp AS T1 INNER JOIN account AS T3 ON T1.account_id = T3.account_id INNER JOIN loan AS T2 ON T3.account_id = T2.account_id WHERE T1.type = 'OWNER' ORDER BY T2.amount DESC LIMIT 1