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.
Q: Sentence1: Shawn was celebrating his first Christmas in his own place. Sentence2: He wanted to put up lights. Sentence3: He had never done it before so he had to look up some tips. Sentence4: When he was ready, he started putting the lights up. Sentence5: It took him a couple of hours, but he was able to get it all right.
A:
Shawn