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: Kim wanted the training wheels off his bike. Sentence2: His dad agreed to remove them. Sentence3: So he went out to test his newly-adult bike. Sentence4: At first he wobbled unsteadily.

But soon he was riding quickly and steadily!