Definition: In this task, you're given a four sentences of story written in natural language. Your job is to complete end part of the story by predicting appropriate last sentence which is coherent with the given sentences.
Input: Sentence1: Nan felt guilty because her pets were alone all day while she worked. Sentence2: She considered getting rid of them, but knew she'd miss them too much. Sentence3: She realized the boy next door got home from school at 3:00 every day. Sentence4: She offered him five dollars a day to spend some time with the cats.

The boy watched her cats for her.