user: ### NOW ANSWER:
Question: Name the builder for serial number being 377
Columns: ['LMS No.', 'WD No.', 'Builder', 'Serial No.', 'Date built']
Types: ['real', 'real', 'text', 'real', 'real']
Sample row: [7620.0, 23.0, 'William Beardmore & Co.', 368.0, 1928.0]
SQL:

assistant: SELECT "Builder" FROM "Table" WHERE "Serial No." = 377.0;