user: Question: What's the date for Princess Royal Class Locomotive Trust?
Columns: ['Number & Name', 'Description', 'Livery', 'Owner(s)', 'Date']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['No. 1163 "Whitehead"', 'Peckett 0-4-0ST', 'Green.', 'Private Owner.', 1908.0]
SQL:

assistant: SELECT "Date" FROM "Table" WHERE "Owner(s)" = 'Princess Royal Class Locomotive Trust';