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: Sara wanted to make her community more eco-friendly. Sentence2: She started a recycling program. Sentence3: There, she taught people how to recycle various types of items. Sentence4: Soon her neighbors were recycling almost everything they could! Sentence5: Sara felt very good about her environmental impact.

Output: Sara, Her neighbors, People

Input: Consider Input: Sentence1: We went to Saint Thomas for our honeymoon. Sentence2: We paid a lot for a luxurious hotel. Sentence3: Our hotel room was infested with large, Caribbean rats. Sentence4: We had to complain multiple times to incompetent hotel management. Sentence5: We finally received a refund.

Output: Caribbean rats

Input: Consider Input: Sentence1: Ed was in the Army. Sentence2: He sent letters to his girl but they never came. Sentence3: Then he came home on leave and ten letters arrived. Sentence4: They had been held up at the post office. Sentence5: His girl got to read all ten letters at once!
Output: Ed, Girl