instruction:
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.
question:
Sentence1: John did not know how to roller skate. Sentence2: His friend said that he would teach him. Sentence3: They spent all day practicing skating. Sentence4: John kept trying and got very good. Sentence5: Now he roller skates all over the neighborhood.
answer:
John, Friend

question:
Sentence1: Tom was at the beach with friends. Sentence2: He had too much fun and forgot to put sunscreen on. Sentence3: Within hours someone pointed out how red he was. Sentence4: Tom was severely sunburned. Sentence5: He had to leave and get special healing lotion.
answer:
Friends, Someone, Tom

question:
Sentence1: Dina had suffered a lot of abuse when she was a child. Sentence2: As a result, she had very low self esteem in adulthood. Sentence3: Dina went to a psychiatrist for help. Sentence4: She learned about why she felt the way she did. Sentence5: After a lot of therapy, Dina is in recovery from the abuse.
answer:
Dina, Psychiatrist