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_72 (championship VARCHAR, session VARCHAR, event VARCHAR)

### Question ###
In the Indianapolis Sweepstakes race session, what is the championship?

### Accurate SQL ###

SELECT championship FROM table_name_72 WHERE session = "race" AND event = "indianapolis sweepstakes"