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.
Input: Sentence1: Landon has a catering business. Sentence2: One day an employee lost a fingernail in the food. Sentence3: An old woman found it in her food. Sentence4: Landon was very embarrassed. Sentence5: He decided to fire the employee.
Output:
Employee, Old woman, Landon