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

### Instruction:
How many points were there in a year earlier than 1977, a Cosworth V8 engine, and an entry from HB Bewaking alarm systems?

### Inputs:
table_name: table, columns: ['Year', 'Entrant', 'Chassis', 'Engine', 'Points']

### Response:
SELECT Points FROM table WHERE Year < 1977 AND Engine = cosworth v8 AND Entrant = hb bewaking alarm systems