premise: After math class, I decided to go to the library.
initial: I caught up on some assignments.
counterfactual: I talked to a friend at the library.
original_ending: I had to wait several hours for my mom to pick me up. Since I was extremely tired, I fell asleep completely. I didn't get any homework done.
edited_ending: I spent several hours talking to her.I didn't notice the time.I didn't get any homework done.<SEP>I had to wait several hours for my mom to pick me up.After my friend left, I fell asleep completely.I didn't get any homework done.<SEP>I had to wait several hours for my friend though.Since I was extremely tired, I fell asleep completely.I didn't get any homework done.