Task: Sentence Ordering
Input (English): Sentence1: The other day I was cleaning up a bit around the apartment. Sentence2: I decided to get rid of all the clutter and papers on the table. Sentence3: I was angry and confused by the letter. Sentence4: Underneath all of them was an older letter from my girlfriend. Sentence5: It said she wanted to break up with me.
Output (English): 12534