user: Question: What year did J. Jones, Trearddur Bay build a boat with a current status of TBSC?
Columns: ['Number', 'Name', 'Year Built', 'Boat Builder', 'Current Status']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Seasnipe', '1898/9', 'R. Latham & Co., Crossens', 'Lost off Southport']
SQL:

assistant: SELECT "Year Built" FROM "Table" WHERE "Current Status" = 'TBSC' AND "Boat Builder" = 'J. Jones, Trearddur Bay';