Consider the following Prolog program:

teaches(chris, history).
teaches(chris, english).
teaches(chris, drama).
teaches(maria, physics).               
studies(alice, english).
studies(jake, english).
studies(emily, drama).
studies(alex, physics).

What is an expected output of the query

below, which uses a cut (!)?

?- teaches(chris, Course), !, studies(Student, Course).