Task: Story Composition
Input (English): Premise: Mark played his saxophone two hours a day. 
 Initial Context: Yesterday, his upstairs neighbor complained about the noise. 
 Original Ending: Today, Mark changed his playing style from rock to jazz. Resentfully, he played for an extra hour. When he quit, he could hear dance steps through the ceiling. 
 New ending: Today, Mark changed his playing style from rock to jazz. Happily, he played for an extra hour. When he quit, he could hear dance steps through the ceiling. 
Output (English): Yesterday, his upstairs neighbor asked if he could come listen.