Q: 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.
Sentence1: I was on a boat with a friend. Sentence2: We were going on a fishing spree. Sentence3: He threw his weight in the water. Sentence4: After several minutes, a small shark came and dragged the fishing pole. Sentence5: I held on to my friend so he wouldn't fall in the water.
A:
I (myself), Shark, Friend