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 wanted a dog. Sentence2: His wife also wanted a dog. Sentence3: They researched dogs together and decided on a German Shepard. Sentence4: They adopted a black German Shepherd named Lucy. Sentence5: Lucy is loving her new life at their house.
A:
His wife, Lucy, Jeff