Task: Story Composition
Input (English): Premise: Brad wanted to learn Spanish. 
 Initial Context: He decided to take a Spanish class. 
 Original Ending: He practiced the language diligently every day. By the end of the class, he was speaking Spanish fluently. Brad was proud that he accomplished his goal. 
 New ending: He practiced the language diligently every day. By the end of the class, he was speaking Mandarin fluently. Brad was proud that he accomplished his goal. 
Output (English): He decided to take a Mandarin class.