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: James was getting ready for Halloween night. Sentence2: He was excited to collect a bunch of candy. Sentence3: He got his mask and costume on in a rush and headed out the door. Sentence4: At his first stop a skeleton popped out of the grass and grabbed him. Sentence5: He was so scared he ran home and stayed inside.
Output:
James, Skeleton