Task: Story Composition
Input (English): Premise: Bob chased after the rainbow through the fields. 
 Initial Context: He ran after it over forests and streams. 
 Original Ending: Bob thought he'd lost it behind a boulder. He found it waiting for him on the other side. When Bob dived for the pot of gold, he woke up. 
 New ending: Bob thought he would not see it again. He found it waiting for him on the other side of the field. When Bob dived for the pot of gold, he woke up. 
Output (English): He ran after it and it disappeared quickly.