Task: Story Composition
Input (English): Premise: Andy had a goal to lose weight by being more physically active. 
 Initial Context: He decided to exercise by taking his dog for a long walk twice a day. 
 Original Ending: After one month of twice daily walks, he had only lost two pounds. Andy then decided to add a one mile run to his daily exercise routine. The extra one mile run helped him to lose two more pounds in two weeks. 
 New ending: After one month of twice daily swims, he had only lost two pounds. Andy then decided to add a one mile run to his daily exercise routine. The extra one mile run helped him to lose two more pounds in two weeks. 
Output (English): He decided to exercise by going to swim twice a week.