Write SQL query to solve given problem: What is the full name of the professor who graduated from an Ivy League School?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT first_name, last_name FROM prof WHERE graduate_from IN ( 'Brown University',  'Columbia University',  'Cornell University',  'Dartmouth College',  'Harvard University',  'Princeton University',  'University of Pennsylvania',  'Yale University' )