Task: Story Composition
Input (English): Premise: Bill bought an aquarium. 
 Initial Context: He filled it with lots of fish. 
 Original Ending: The next day he saw that many fish died. He was sad. He decided to only use a few fish next time so they all had air. 
 New ending: The next day bought many fish died. He was excited. He decided to only live feeder fish next time so they all had great food. 
Output (English): He was trying to decide what fish to buy.