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: The family decided to have a picnic. Sentence2: Mother made some turkey sandwiches. Sentence3: She gathered chips and punch and added them. Sentence4: Finally, she added some fresh cookies for dessert.

Then they grabbed their basket and headed off for a picnic.