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: We sat down to talk about our problems. Sentence2: He said he wanted to work it out. Sentence3: I told him I didn't know if we could. Sentence4: He said he would start to change. Sentence5: I told him I would try one more time.
answer:
I (myself)

question:
Sentence1: She opened the back door and propped it. Sentence2: The dog didn't notice. Sentence3: A loud noise got her attention. Sentence4: It was a bird in the backyard. Sentence5: She ran outside to check it out.
answer:
Dog, Bird

question:
Sentence1: Dan was at the family picnic. Sentence2: There was lots of watermelon. Sentence3: Damn ate until it was gone. Sentence4: Then Dan was sad. Sentence5: However it turns out his father saved him a huge slice.
answer:
Dan, Father, Family