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: Sheila went to her apartment late at night. Sentence2: Suddenly, she heard uneven sound from her room. Sentence3: She was so scared and don't know what to do. Sentence4: When she's inside her room she saw a ghost and she began to cry. Sentence5: Until her friends showed up and she realized it's just a prank.
Student:
Sheila, Ghost, Her friends