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_10333757_1 (market_rank VARCHAR, calls VARCHAR)

### Question ###
Which Market/Rank is associated with WCRN calls?

### Accurate SQL ###

SELECT market_rank FROM table_10333757_1 WHERE calls = "WCRN"