premise: Tommy had always dreamed of having a dog.
initial: He begged his parents to get one.
counterfactual: Tommy never got a dog.
original_ending: Finally on Tommy's birthday, his parents gave him a dog! Tommy named his dog Spot. Tommy and Spot became best friends.
edited_ending: Finally on Tommy's tenth birthday, his parents gave him a dog!Tommy named his dog Spotty.Tommy and Spotty became best friends.<SEP>On Tommy's birthday, his parents gave him a cat though!Tommy named his cat Spot.Tommy and Spot became best friends.<SEP>Finally on Tommy's birthday, his parents gave him a cat!Tommy named his cat Spot.Tommy and Spot became best friends.