Teacher: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.
Teacher: Now, understand the problem? Solve this instance: Sentence1: Lisa was scared. Sentence2: She was in the water when she saw a shark approaching. Sentence3: She scrambled out of the water and got back on the boat. Sentence4: She watched the shark circle the boat a few times. Sentence5: Then he swam off into the distance.
Student:
Lisa, Shark