Definition: 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: Sentence1: Dennis loved to listen to music ever since he was a toddler. Sentence2: Dennis tried to learn a lot of instruments as well. Sentence3: He did not succeed however, and he was not good at playing them. Sentence4: Dennis was very mad and then tried to learn how to write songs. Sentence5: Now Dennis is able to make a lot of money from writing songs.
Output:
Dennis