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: Ellen planted flowers every spring. Sentence2: She waters and talks to them daily. Sentence3: She gets excited as little sprouts start to appear. Sentence4: Finally the flowers are mature and bloomed. Sentence5: Now Ellen arrange the flowers in vases around her house.
Ellen