user: Question: What WA has a LNER Class of N13 and 10?
Columns: ['Class', 'W.A.', 'Quantity', 'Date', 'LNER Class']
Types: ['text', 'text', 'real', 'text', 'text']
Sample row: ['A', '0-6-0T', 12.0, '1884', '—']
SQL:

assistant: SELECT "W.A." FROM "Table" WHERE "Quantity" = 10.0 AND "LNER Class" = 'N13';