For the students with an intelligence of 5, list the full name and courses taken by them who have less than a 3 GPA.
full name of the students = f_name, l_name; gpa < 3;
SELECT T1.f_name, T1.l_name, T3.name FROM student AS T1 INNER JOIN registration AS T2 ON T1.student_id = T2.student_id INNER JOIN course AS T3 ON T2.course_id = T3.course_id WHERE T1.intelligence = 5 AND T1.gpa < 3