text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE prereq (title VARCHAR, course_id VARCHAR); CREATE TABLE course (title VARCHAR, course_id VARCHAR)
  ### Question:
  Find the name of the courses that do not have any prerequisite?
  ### Answer:
  SELECT title FROM course WHERE NOT course_id IN (SELECT course_id FROM prereq)