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: Neil was in his mother's attic. Sentence2: He found a shoebox full of old family photos. Sentence3: Neil went to a copy service. Sentence4: He made several copies of all the pictures. Sentence5: Neil shared all the pictures with his family.

Output: Neil, Family, His mother

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: Tim stepped out of the shower and grabbed a towel. Sentence2: He only had one for his body and not his long hair. Sentence3: Tim looked for a hair drier but it was broken. Sentence4: He sat in front of a fan to dry his hair. Sentence5: The fan worked very slowly but it worked.
Output: Tim