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: Jeff was wrapping his gifts for christmas. Sentence2: He had only one more left to do. Sentence3: As he reached for the tape, he noticed he was out. Sentence4: Jeff tried to tie the paper to the gift with ribbon. Sentence5: It worked slightly so Jeff used a lot more ribbon to secure it.
A:
Jeff