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: Tom and Sue decided to have a picnic in the park. Sentence2: They packed cold chicken and potato salad along with drinks. Sentence3: They sat on a blanket along with the food. Sentence4: Tom and Sue decided then they would play frisbee for awhile.

They return to their blanket to discover ants had invaded their meal.