Instructions: 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: My friends noticed that they act strange during a full moon. Sentence2: They said they engaged in risky activities and couldn't sleep. Sentence3: I told them that it might be some kind of placebo effect. Sentence4: They looked up the scientific facts and showed them to me.
Output:
I was surprised to see that they were right about their experiences.