Task: Story Composition
Input (English): Premise: Sam decided he wanted to ride his bike to work to get some exercise. 
 Initial Context: Sam didn't often ride his bike and had forgotten how to use the gears. 
 Original Ending: Getting to work was simple since it was all down hill. Going home was difficult since the ride was all uphill. He arrived home exhausted and decided to practice gear-shifting. 
 New ending: Getting to work was difficult since it was all down hill and scary. Going home was easier since the ride was all uphill and he could walk it. He arrived home exhausted and decided to practice bike-riding. 
Output (English): Sam didn't often ride his bike and had forgotten how and kept falling off.