Task: Story Composition
Input (English): Premise: The winter of 1993 was bad in Boston. 
 Initial Context: I could not bicycle to work, and rode the trolley. 
 Original Ending: My station stop had a store. I ate a lot of muffins while riding to work that winter. As a result I gained twenty pounds. 
 New ending: My station stop had a bike-rental shop. I got a lot of exercise while riding to work that winter. As a result I lost twenty pounds. 
Output (English): I could not ride the trolley to work.