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_16423070_4 ( tennis VARCHAR, softball VARCHAR, volleyball VARCHAR )

### Question ###
who won tennis when ashland won softball and wooster won volleybal

### Accurate SQL ###

SELECT tennis FROM table_16423070_4 WHERE softball = "Ashland" AND volleyball = "Wooster"