premise: I arrived in school and decided to head to the library.
initial: When I looked at my phone, it had ten percent of its battery left.
counterfactual: My phone battery was at 100%.
original_ending: In addition, I forgot my phone charger at home. Unless there was an emergency call, I didn't use my phone. I didn't need to use my phone the whole day.
edited_ending: Luckily, because I forgot my phone charger at home.I was able to use my phone as much as I wanted.I used my phone the whole day.<SEP>Luckily, I did not need my phone charger at home.If there was an emergency call, I could use my phone.I needed to use my phone the whole day.<SEP>That was good, because I forgot my phone charger at home.To preserve my battery, unless there was an emergency call, I didn't use my phone.I didn't need to use my phone the whole day.