Task: Sentence Ordering
Input (English): Sentence1: On the way he met a group of kids riding bikes as well. Sentence2: Neiter Mike nor the kids were wearing helmets at the time. Sentence3: He cycled from his house to a friend's house. Sentence4: Mike bought a new bike to ride in his town. Sentence5: Mike accidentally collided with the kids.
Output (English): 34215