user: Question: What is the birthday of the player who has Years at Club of 1951?
Columns: ['Debut year', 'Player', 'Date of birth', 'Games', 'Goals', 'Years at club']
Types: ['real', 'text', 'text', 'real', 'real', 'text']
Sample row: [1950.0, 'Ray Jones', '17 February 1924', 2.0, 0.0, '1950']
SQL:

assistant: SELECT "Date of birth" FROM "Table" WHERE "Years at club" = '1951';