Task: Sentence Ordering
Input (English): Sentence1: His mother heard him from in the kitchen and ran over to him. Sentence2: As he climbed, his foot slipped and he fell to the ground. Sentence3: The boy started crying very loudly. Sentence4: A young toddler was climbing up a chair in his living room. Sentence5: The mother comforted the child.
Output (English): 42315