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: Rob went to the beach for a day of fun. Sentence2: After an hour of swimming, something terrible happened. Sentence3: Rob was being swept out to sea by a rip current. Sentence4: A man with a surfboard reach him and pulled him on.

Together they returned safely to the shore.