Task: Story Composition
Input (English): Premise: Sam's grandpa was proud to show off his garden. 
 Initial Context: When the grandpa took a nap, Sam went back to the garden. 
 Original Ending: A bit later, Sam woke his grandfather. Sam proudly handed the old man a basket of vegetables. The grandpa smiled although every vegetable was unripe. 
 New ending: A couple of weeks later Sam helped his grandpa pick the vegetables. Sam proudly handed the old man a basket of vegetables. The grandpa smiled because some of the vegetables were unripe. 
Output (English): He told Sam it would be a few more weeks until the vegetables were ripe.