Task: Sentence Ordering
Input (English): Sentence1: Mark opened the back door of the restaurant and walked outside. Sentence2: It was the time of the day to take out the trash. Sentence3: He had gone hungry before so he knew all things must eat. Sentence4: He felt bad for the birds. Sentence5: Halfway to the dumpster, he saw many birds, feeding on the trash.
Output (English): 12453