You will be given a definition of a task first, then some input of the task.
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: Ken was happy to divorce his wife. Sentence2: He thought things would be better some place else. Sentence3: He was wrong. Sentence4: Life got much harder. Sentence5: He really regretted leaving his family.
Output:
Ken, Family, Wife