CREATE TABLE Course_Authors_and_Tutors (author_id VARCHAR(255), personal_name VARCHAR(255)); CREATE TABLE Courses (course_name VARCHAR(255), author_id VARCHAR(255))
Find the names of courses taught by the tutor who has personal name "Julio".
    
SQL: SELECT T2.course_name FROM Course_Authors_and_Tutors AS T1 JOIN Courses AS T2 ON T1.author_id = T2.author_id WHERE T1.personal_name = "Julio"