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: Ana needed gas in her car. Sentence2: But the prices in her town were so high! Sentence3: She took a drive out the the reservation. Sentence4: There, gas was almost a dollar cheaper. Sentence5: Ana filled her tank at the reservation!
[A]: Ana

[Q]: Sentence1: Amy was going to the break room to get ice. Sentence2: Her friend Troy was having his lunch. Sentence3: Amy wasn't on break, but decided to chat with Troy anyway. Sentence4: 20 minutes later Amy was still with Troy. Sentence5: She crept back to her desk hoping not to be seen by her boss.
[A]: Amy, Troy, Boss

[Q]: Sentence1: Dan entered an eating contest at his local fair. Sentence2: Dan was very competitive, and he could eat a whole pizza. Sentence3: When the contest started Dan stuffed hot dogs into his mouth. Sentence4: On his 30th hot dog it all came back up. Sentence5: Dan lost the contest, and was sick for days.
[A]:
Dan