Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_name_89 (visitor VARCHAR, date VARCHAR, home VARCHAR, round VARCHAR)

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

### Accurate SQL ###

SELECT visitor FROM table_name_89 WHERE home = "linköpings hc" AND round > 20 AND date = "saturday, november 22"