Task: Story Composition
Input (English): Premise: Billy decided to order pizza. 
 Initial Context: He called the local pizza restaurant. 
 Original Ending: He ordered a pizza with mushrooms and olives. When he received his pizza, it only had olives. Billy decided that he would not call that pizza restaurant again. 
 Counterfactual Context: He wanted hawaiian.
Output (English): He ordered a pizza with pineapple and ham. When he received his pizza, it had olives on it. Billy decided that he would not call that pizza restaurant again.