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: Tad's parents told him they were bringing him home a puppy! Sentence2: Tand was so excited! Sentence3: He went right to his garage and started crafting a dog house. Sentence4: He hammered and sanded and painted all afternoon. Sentence5: When his parents returned home with the dog, the house was finished!
A:
Tad, The dog, A puppy, Tad's parents