Task: Story Composition
Input (English): Premise: Kevin Durant used to play for the Oklahoma City Thunder. 
 Initial Context: He was the team's best player. 
 Original Ending: His team lost to Golden State in the NBA playoffs. Once free agency began, he decided to sing with a new team. He left the Thunder and signed with Golden State. 
 New ending: The next year, his team lost to Golden State in the NBA playoffs. Once free agency began, he decided to sign with a new team. He left the Thunder and signed with Golden State. 
Output (English): He was the team's best player in their playoff series win over Golden State.