Task: Story Composition
Input (English): Premise: Evan was ready to buy himself a bicycle. 
 Initial Context: He went to the store and looked around. 
 Original Ending: Then he selected the bike he liked best. He took it up to the counter and paid for it. Then he rode it home! 
 Counterfactual Context: He went to the store but forgot his money.
Output (English): Then he selected the bike he liked best. He took it up to the counter and asked them to reserve it while he went to get his money from his car. Then he strapped the bike to the back of his car and drove home.