Detailed Instructions: 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: Jim went to play ultimate Frisbee with his girlfriend. Sentence2: They tossed a disc around for hours at the park. Sentence3: Finally they formed a team with some people at the park. Sentence4: They played for hours. Sentence5: Jim and his girlfriend were completely drenched in sweat afterwards.
Solution:
Some people at the park, Jim, His girlfriend