You will be given a definition of a task first, then some input of the task.
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: The dog has been itching and scratching a lot lately. Sentence2: I took a look at her belly while we were playing this afternoon. Sentence3: I noticed several red marks and sores on her belly. Sentence4: Apparently fall is a rough time with dogs and allergies. Sentence5: I made an appointment with the vet for a bath and exam this Friday.
Output:
I (myself), Vet, Dog