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: Tess heard some sound coming from the kitchen. Sentence2: She got a broom and nervously approached the kitchen. Sentence3: She used the broom handle to tap on various surfaces. Sentence4: As she tapped on the pantry, a snake hissed at Tess. Sentence5: Tess ran out of the kitchen, dropping the broom along the way.
Output:
A snake, Tess