user: Question: Which SuRname has Bats of R, and a Position of P, and a DOB of 20 May 1989?
Columns: ['Surname', 'First', 'D.O.B.', 'Bats', 'Throws', 'Position']
Types: ['text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['BALGERA', 'Clint', '5 August 1975', 'L', 'R', 'OF']
SQL:

assistant: SELECT "Surname" FROM "Table" WHERE "Bats" = 'R' AND "Position" = 'P' AND "D.O.B." = '20 May 1989';