Detailed Instructions: 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: Xena's cat Pebbles was overweight because of being overfed. Sentence2: He couldn't even jump on the bed anymore. Sentence3: The veterinarian gave Xena a strict diet to put Pebbles on. Sentence4: Slowly but surely he began to lose weight. Sentence5: Eventually he was able to jump on the bed again!
A:
Pebbles, The veterinarian, Xena