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_11 (sport VARCHAR, league VARCHAR, venue VARCHAR)

### Question ###
Which Sport has a League of continental basketball league, and a Venue of avalon middle school?

### Accurate SQL ###

SELECT sport FROM table_name_11 WHERE league = "continental basketball league" AND venue = "avalon middle school"