Instructions: 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: Kelly made herself a cup of hot tea. Sentence2: She put in the tea bag and took a sip. Sentence3: It was delicious. Sentence4: However to her dismay, she spilled some. Sentence5: Kelly ended up with a burn.
Output:
Kelly