Task: Text to Code
Input (English): SQL: SELECT Enrollment FROM School WHERE Mascot = "Glenn"
Feedback: Make sure to find number of rows of endowment table and replace mascot with school name .
Output (English): SELECT count(DISTINCT T1.donator_name) FROM endowment AS T1 JOIN school AS T2 ON T1.school_id  =  T2.school_id WHERE T2.school_name  =  "Glenn"