Original: During her journey, she meets a Scarecrow (Ray Bolger), a Tin Man (Jack Haley), and a Cowardly Lion (Bert Lahr), who join her, hoping to receive what they lack themselves (a brain, a heart, and courage, respectively).
Simplified: On the way, she meets: The Scarecrow (Ray Bolger), who has no brain; the Tin Man (Jack Haley), who has no heart; the Cowardly Lion (Bert Lahr), who lacks courage.