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: On Thanksgiving morning the Smith girls were getting ready to cook. Sentence2: Everything was prepped and ready to cook, but something was missing. Sentence3: There was no cranberry sauce! Sentence4: The girls tried using other fruits to substitute, but none would do. Sentence5: Then Grandma Smith arrived with her world famous cranberry sauce!
Grandma, Grandma smith, Smith girls

Sentence1: Greta had noticed her son was having trouble focusing in school. Sentence2: Greta took her son to the doctor. Sentence3: The doctor diagnosed the boy with ADHD. Sentence4: The doctor prescribed medicine for him. Sentence5: Greta's son now focuses much better in class.
Greta, Greta's son, The doctor

Sentence1: Tina was shopping for her son's first birthday. Sentence2: She had everything she needed except for the perfect cake. Sentence3: She was perusing the shelves but nothing stood out. Sentence4: Luckily the baker offered to show her some special new cakes. Sentence5: Tina found the perfect one for her son and thanked the baker.
Baker, Tina