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: Roland came to the bowling alley looking to improve his skills. Sentence2: He paid for 2 hours of bowling as well as premium equipment. Sentence3: Roland hadn't been playing for long when he got his first ever strike. Sentence4: Feeling accomplished, he did his signature dance and ordered food. Sentence5: He managed to do it 3 more times before it was done for the evening.
[A]: Roland

[Q]: Sentence1: When I was a kid there was a lake near my house. Sentence2: Every afternoon I would go outside and throw rocks into the lake. Sentence3: Sometimes there would be ducks in the lake. Sentence4: My parents would always tell me to be careful and not hit the ducks. Sentence5: I really miss living by that lake and seeing those ducks!
[A]: I (myself), My parents, Ducks

[Q]: Sentence1: One day Callie took a trip to Cincinnati. Sentence2: First she went to the museum. Sentence3: Then she went to the zoo. Sentence4: Finally she went to the Underground Railroad. Sentence5: She had a great time.
[A]:
Callie