Suppose The Wizard of Oz is a 1939 American musical fantasy film directed by Victor Fleming. It stars Judy Garland as Dorothy Gale, a young girl who is swept away to the magical land of Oz in a tornado and embarks on a quest to see the Wizard who can help her return home.
Can we infer that "The Wizard of Oz is based on a true story."? Yes, no, or maybe?