user: Question: What's the HR Number when the LMS number is 14757 and has a built of 9/1915?
Columns: ['HR no.', 'HR name', 'CR no.', 'LMS no.', 'Built', 'Works', 'Withdrawn']
Types: ['text', 'text', 'real', 'real', 'text', 'text', 'text']
Sample row: ['70', 'River Ness', 938.0, 14756.0, '9/1915', 'Hawthorn Leslie 3095', '10/1939']
SQL:

assistant: SELECT "HR no." FROM "Table" WHERE "Built" = '9/1915' AND "LMS no." = 14757.0;