CREATE TABLE table_16423070_4 (tennis VARCHAR2, softball VARCHAR2, volleyball VARCHAR2)

who won tennis when ashland won softball and wooster won volleybal
SELECT tennis FROM table_16423070_4 WHERE softball = "Ashland" AND volleyball = "Wooster"
SELECT "tennis" FROM "table_16423070_4" WHERE "Ashland" = "softball" AND "Wooster" = "volleyball"