Task: Text to Code
Input (English): Step 1: For each row in College table, find the corresponding rows in Tryout table.
Step 2: find enr of the results of step 1 whose pPos equals yes
Output (English): SELECT T1.enr FROM College AS T1 JOIN Tryout AS T2 ON T1.cName = T2.cName WHERE T2.pPos = "yes"