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: Nora went to the dentist this week. Sentence2: She was nervous they would find cavities because she had a toothache. Sentence3: Her fears were confirmed when they found two. Sentence4: The dentist told her she'd have to schedule follow up visits. Sentence5: She's getting fillings next Wednesday.
Nora, The dentist

Sentence1: Alex had a young son. Sentence2: The boy was three years old. Sentence3: He still wasn't speaking. Sentence4: Alex told the doctor about his speech issue. Sentence5: Alex's son started to see a speech therapist.
Speech therapist, Alex, Young son, Doctor

Sentence1: Evelyn and Robert moved into a new home. Sentence2: Evelyn bought a few houseplants to liven up the place. Sentence3: Then a friend who was moving away gifted Evelyn some of his plants. Sentence4: Soon, everyone thought Evelyn was a plant fanatic. Sentence5: Now, everyone gives Evelyn house plants as gifts.
Evelyn, Robert, A friend, Everyone