Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Who is the driver whose Constructor was Era, and whose entrant was T.A.S.O. Mathieson?

### Inputs:
table_name: table, columns: ['Entrant', 'Constructor', 'Chassis', 'Driver', 'Rounds']

### Response:
SELECT Driver FROM table WHERE Constructor = era AND Entrant = t.a.s.o. mathieson