Definition: 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.
Input: Sentence1: Freeman loved his family. Sentence2: They were very nice to him and never made him sad. Sentence3: One day, he had to go to another country. Sentence4: When he went on the airplane, he missed his family. Sentence5: After the trip, Freeman was very happy when he saw his family.
Output:
Freeman, Family