user: Question: Name the most lot number with notes of B4 bogies and diagram of 185
Columns: ['Lot No.', 'Diagram', 'Mark', 'Builder', 'Fleet numbers', 'Notes']
Types: ['real', 'real', 'text', 'text', 'text', 'text']
Sample row: [30170.0, 183.0, '1', 'Doncaster', '9200–9276', 'BR1 bogies']
SQL:

assistant: SELECT MAX("Lot No.") FROM "Table" WHERE "Notes" = 'B4 bogies' AND "Diagram" = 185.0;