List the full name of the professors who advised students with intelligence 1.
full name of the professors = first_name, last_name;
SELECT T1.first_name, T1.last_name FROM prof AS T1 INNER JOIN RA AS T2 ON T1.prof_id = T2.prof_id INNER JOIN student AS T3 ON T2.student_id = T3.student_id WHERE T3.intelligence = 1