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: Katherine was at home watching TV. Sentence2: Suddenly she got a phone call. Sentence3: Her dad had had a heart attack and was in the hospital. Sentence4: She quickly went to the hospital to be with him. Sentence5: Luckily, he recovered in a couple of days and was alright.
[A]: Dad, Katherine

[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 showed up at a campsite one summer day. Sentence2: I immediately began to set up my tent and work on a fire. Sentence3: After finishing those things, I pulled out food and began to cook. Sentence4: While I was relaxing, it began to rain very hard. Sentence5: I had to run into my tent, but the rain didn't stop until the next day.
[A]:
I (myself)