Definition: 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: David realized his marriage was at stake. Sentence2: David took up anger management lessons. Sentence3: He also talked to a counselor. Sentence4: He also talked to a therapist. Sentence5: He told his that his anger was in control from now on.
Output:
Therapist, Counselor, David