Describe the course level and list of person IDs who taught course ID of 147.
person IDs refers to taughtBy.p_id; course ID of 147 refers to course.course_id = 147
SELECT T1.courseLevel, T1.course_id FROM course AS T1 INNER JOIN taughtBy AS T2 ON T1.course_id = T2.course_id WHERE T2.p_id = 141