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_50 (opponent VARCHAR, location_attendance VARCHAR)

### Question ###
Who was the opponent, during the game at the location of keyarena at seattle center?

### Accurate SQL ###

SELECT opponent FROM table_name_50 WHERE location_attendance = "keyarena at seattle center"