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: Kathie fell from her bicycle. Sentence2: She bumped her head pretty hard on the ground. Sentence3: Kathie stood up dazed. Sentence4: A stranger escorted her to a hospital. Sentence5: Kathie was treated for a mild concussion.

SOLUTION: A stranger, Kathie

PROBLEM: Sentence1: I recently attended a wine tasting at a local winery. Sentence2: We received 6 tastes of wine for ten dollars. Sentence3: The first wine I had was delicious! Sentence4: My other five tastes were of the same wine. Sentence5: I went home with a full case of that same Merlot.

SOLUTION: I (myself)

PROBLEM: Sentence1: Adam had a job interview which went well. Sentence2: The interviewer said he would call Adam the next day. Sentence3: Adam waited by his phone all the next day. Sentence4: He picked it up every time it rang. Sentence5: But it was never the interviewer.

SOLUTION:
The interviewer, Adam