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: The Greens live in Atlanta. Sentence2: Last week, they traveled to Canada. Sentence3: There was a lot of snow and ice. Sentence4: Wind chills were well below zero. Sentence5: The Greens are happy to be back in warm Atlanta!
[A]: Greens

[Q]: Sentence1: Tina had never tried Pizza before. Sentence2: She had eaten healthy her entire life. Sentence3: So she decided to try a slice. Sentence4: When she tasted it it was amazing. Sentence5: Tina could not believe her tastebuds.
[A]: Tina

[Q]: Sentence1: After failing at employment and education, Mike felt lost. Sentence2: He called his parents for help who told him to move back in. Sentence3: Mike's parents were very worried and decided to send him to therapy. Sentence4: Mike then began to see a psychiatrist a few times a week. Sentence5: After the therapy, Mike began to feel better in life.
[A]:
Mike, Mike's parents, Psychiatrist