user: Question: What builder has lot number 30702?
Columns: ['Lot No.', 'Diagram', 'Built', 'Builder', 'Fleet numbers']
Types: ['real', 'real', 'text', 'text', 'text']
Sample row: [30485.0, 97.0, '1957–1958', 'York', '1801–1812']
SQL:

assistant: SELECT "Builder" FROM "Table" WHERE "Lot No." = 30702.0;