Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Kevin wanted to learn how to skateboard. Sentence2: He bought a used board from a friend. Sentence3: He then took lessons at the skate park on the weekends. Sentence4: After a few months he was able to ride down the sidewalk.

After a year Kevin was able to do tricks at the skate park.