Task: Story Composition
Input (English): Premise: Charlie had to cash his paycheck. 
 Initial Context: He got in his car and drove to the bank. 
 Original Ending: He told the teller her wanted to deposit his check. Charlie signed his check on the dotted line. The teller deposited the check for Charlie. 
 Counterfactual Context: He got in his car and and forgot his check on the way to the bank.
Output (English): He told the teller her that he forgot his check and wanted to deposit his check. Charlie returned and signed his check on the dotted line. The teller deposited the check for Charlie.