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: Consider Input: Sentence1: Randy hopped out of the moving truck. Sentence2: He helped his family unload the boxes into their new home. Sentence3: The rest of the day was spent unpacking and moving furniture. Sentence4: By night, Randy was exhausted. Sentence5: He couldn't wait to meet new friends tomorrow.

Output: Randy, Friends, Family

Input: Consider Input: Sentence1: Kate was bored so she decided to watch TV. Sentence2: She flipped through the channels looking for a show. Sentence3: In her desperation she checked the channels she never watched. Sentence4: The Shining was on TBS. Sentence5: She immediately changed the channel.

Output: Kate

Input: Consider Input: Sentence1: Abby was not having a good day at all. Sentence2: In fact, Abby was told by her mother she had breast cancer. Sentence3: Abby wanted to just crawl up in a hole and sulk for her mother. Sentence4: However, Abby's mother assured her that her cancer was treatable. Sentence5: Abby was still very sad at her mother's diagnosis.
Output: Abby's mother, Abby