instruction:
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.
question:
Sentence1: Los Angeles has the worst parking ever. Sentence2: After driving around the same block five times I found a spot. Sentence3: I threw my car into park and hopped out. Sentence4: I came back in five minutes and already had a parking ticket. Sentence5: I didn't realize it was a park only on a Tuesday with a blue car zone.
answer:
I (myself)

question:
Sentence1: Yusuf was startled by a loud knocking at his door at a late hour. Sentence2: He wasn't expecting company, and grabbed his gun. Sentence3: A shivering woman greeted him when he opened the door. Sentence4: She had hit black ice and her car had slid off the road. Sentence5: Yusuf called a tow truck for her, and let her warm up in his house.
answer:
Yusuf, Woman

question:
Sentence1: When I was 6 years old, a dog followed me home from school. Sentence2: This dog became my best friend of all time. Sentence3: Her breed was a Boxer, which is a protective, family oriented dog. Sentence4: Unfortunately, someone stole her from our backyard when I was 12. Sentence5: I will always wonder what happened to Gertrude the Boxer dog.
answer:
I (myself), The dog, Someone