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: Meghan and I went to the beach one time. Sentence2: It was a long drive and we both got grumpy. Sentence3: When we finally arrived we sat in the sand and had lunch. Sentence4: She was sad it was such an overcast day. Sentence5: I cheered her up with a giant love note in the sand.

Output: Meghan, I (myself)

Input: Consider Input: Sentence1: Christina converted to Islam when she was in college. Sentence2: Before she converted, she read a lot about Islam. Sentence3: She found out that Muslims should not have names like hers. Sentence4: Christina means follower of Christ which is not in line with Islam. Sentence5: Christina changed her name to Charity.

Output: Christina, Charity

Input: Consider Input: Sentence1: It was valentine's day when someone gave me flowers. Sentence2: Is was on top of my table and i don't know from whom is was. Sentence3: I found a card inside the bouquet. Sentence4: It says there that we will meet in front of the school fountain. Sentence5: When i saw him i noticed he is my neighbor and childhood friend.
Output: I (myself), Someone