Table schema:
CREATE TABLE school (school_name VARCHAR, school_id VARCHAR); CREATE TABLE endowment (school_id VARCHAR, amount INTEGER)

Question: List all the names of schools with an endowment amount smaller than or equal to 10.
SQL: SELECT T2.school_name FROM endowment AS T1 JOIN school AS T2 ON T1.school_id = T2.school_id GROUP BY T1.school_id HAVING SUM(T1.amount) <= 10