user: Question: Name the number of cancelled for Turnham Green
Columns: ['Station', 'Line', 'Planned', 'Cancelled', 'Proposal', 'Details']
Types: ['text', 'text', 'real', 'real', 'text', 'text']
Sample row: ['Alexandra Palace', 'Northern', 1935.0, 1954.0, 'Transfer from LNER', 'Abandoned part of Northern Heights Project']
SQL:

assistant: SELECT "Cancelled" FROM "Table" WHERE "Station" = 'Turnham Green';