Task: Sentence Ordering
Input (English): Sentence1: Luckily he had been saving everything on an external disk. Sentence2: Suddenly, his computer crashed and died. Sentence3: Brandon stayed up until 1 in the morning to try and finish his paper. Sentence4: He begun working on the paper on his 2003 Dell laptop. Sentence5: Brandon was given a 10 page research paper to write for class.
Output (English): 54321