In this task, you're given a story (which contains five sentences only). Your task is to find all the characters which are available in the given story.
Q: Sentence1: Jason had many times said he did not believe in a god. Sentence2: He sometimes tried to belittle friends for their beliefs. Sentence3: Jason got really sick and found out he had cancer. Sentence4: He had this one friend that had cancer but he prayed and got better. Sentence5: Jason was desperate so he asked that friend how to pray to God.
A:
Friends, Jason, Friend