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: Ina and her boyfriend Tio had been dating for eight years. Sentence2: Lately things had been rough, so when he asked her out, she sighed. Sentence3: She was sure they were going to break up that evening. Sentence4: But instead, Tio said he wanted to make things work with Ina! Sentence5: He said he had already scheduled, and paid for, couples counseling!

Ex Output:
Tio, Ina

Ex Input:
Sentence1: Simon invited his friend Joey over for a play-date. Sentence2: He was looking forward to playing Minecraft with his friend. Sentence3: Right before Joey arrived, the internet went out. Sentence4: Simon tried resetting the router, but it didn't help. Sentence5: Simon and Joey played outside until the router was back online.

Ex Output:
Simon, Joey

Ex Input:
Sentence1: Cole was driving home from a game one night. Sentence2: He got pulled over for speeding. Sentence3: The officer issued him a ticket for going so fast. Sentence4: Cole had not realized he had been lost in thought while driving. Sentence5: He now sets his cruise control so he won't speed again.

Ex Output:
Cole, The officer