user: Question: Tell me the control trailers for 52 motors
Columns: ['Year', 'Builder', 'Motors', 'Trailers', 'Control Trailers']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['1923', 'BRCW', '—', '1', '—']
SQL:

assistant: SELECT "Control Trailers" FROM "Table" WHERE "Motors" = '52';