Task: Story Composition
Input (English): Premise: Kate and her husband were expecting. 
 Initial Context: They had an appointment for a sonogram. 
 Original Ending: Both were nervous for the results. When the doctor ran the instrument over Kate, he had a surprise. He told them he heard two hearts and said they were having twins! 
 Counterfactual Context: They decided not to do a sonogram.
Output (English): Both were too nervous for those results. If the doctor had run the instrument over Kate, he would have had a surprise. He would have told them he heard two hearts and said they were having twins!