Task: Story Composition
Input (English): Premise: Bob was eating dinner when he felt something funny in his mouth. 
 Initial Context: As he was chewing he bit down on something hard. 
 Original Ending: He spit out the piece and found out it was part of his tooth. It did not hurt so he kept eating. About a week later his tooth felt funny because it was so jagged. 
 Counterfactual Context: While chewing he looked down at his dinner and saw ants.
Output (English): He spit out an ant and found out it was dead. It did not taste bad so he kept eating. About a week later his stomach felt funny because it was so full of ants.