TASK DEFINITION: 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.
PROBLEM: 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.

SOLUTION: I (myself)

PROBLEM: 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.

SOLUTION: Dad, Katherine

PROBLEM: Sentence1: Jonathan is driving his new car for the first time. Sentence2: He is very nervous about driving. Sentence3: Jonathan pulls out in front of Sara's car and the two cars hit. Sentence4: Sara is hurt and Jonathan's car is totaled. Sentence5: Jonathan's dad said, "You will not be driving for a very long time."

SOLUTION:
Dad, Sara, Jonathan