user: Question: what livery has a status of In service as coaching stock?
Columns: ['Vehicle Numbers', 'Vehicle Types', 'Livery', 'Location', 'Status']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['M50454+M50528', 'DMBS+DMCL', 'Blue', 'Llangollen Railway', 'In service']
SQL:

assistant: SELECT "Livery" FROM "Table" WHERE "Status" = 'In service as coaching stock';