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

### Instruction:
Who is the visitor team on Saturday, November 22 when linköpings hc was the home team and there were more than 20 rounds?

### Inputs:
table_name: table, columns: ['Round', 'Date', 'Home', 'Result', 'Visitor', 'Venue', 'Attendance']

### Response:
SELECT Visitor FROM table WHERE Home = linköpings hc AND Round > 20 AND Date = saturday, november 22