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: I made spaghetti last night. Sentence2: I went to the fridge to get my Romano cheese, which I love! Sentence3: To my great disappointment, I had none. Sentence4: I thought grated cheddar might be a replacement. Sentence5: I tried that and it was horrible, so I ate a hamburger instead.
[A]: I (myself)

[Q]: Sentence1: I found out my cat is pregnant. Sentence2: I had no idea why she was making all these funny noises. Sentence3: She would hide a lot under my bed. Sentence4: A friend told me this behavior was of a pregnant animal. Sentence5: I cannot wait to see the kittens.
[A]: I (myself), Friend, Cat

[Q]: Sentence1: Rachel was staring at the clouds. Sentence2: She could make out distinct shapes in all of them. Sentence3: Some were more elaborate than others. Sentence4: Before long it started to rainy. Sentence5: This made all the shapes turn dark and sinister.
[A]:
Rachel