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

### Instruction:
What was the signed year for the Chinese name 蘇永康 who separated in 1987?

### Inputs:
table_name: table, columns: ['English name', 'Chinese name', 'Year signed', 'Year separated', 'Reason for separation']

### Response:
SELECT Year signed FROM table WHERE Year separated = 1987 AND Chinese name = 蘇永康