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.

Sentence1: Jennifer was reading on the couch. Sentence2: She suddenly saw a spider on the wall next to her. Sentence3: She jumped off the couch and screamed. Sentence4: She then realized it wasn't a spider, just the shadow of the lamp. Sentence5: Jennifer felt silly and embarrassed.
Spider, Jennifer