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.

Ex Input:
Sentence1: Calvin was so excited! Sentence2: His friends were coming over for a birthday party. Sentence3: He cleaned his room and decorated the play room. Sentence4: They came over and brought him gifts. Sentence5: He had a great time!

Ex Output:
Friends, Calvin

Ex Input:
Sentence1: Charles didn't like how his preacher skipped around the Bible. Sentence2: Charles thought the Bible should be read from beginning to end. Sentence3: He made a plan to read the whole Bible in 30 days. Sentence4: He read in the day and listened to Bible readings on youtube at night. Sentence5: He read through the Bible in 30 days and impressed his preacher.

Ex Output:
Charles, His preacher

Ex Input:
Sentence1: Dolly read the prayer of Jabez. Sentence2: It inspired her to move. Sentence3: She left her teaching job. Sentence4: She took a better job offer. Sentence5: She was happy for a change.

Ex Output:
Dolly