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: Ann went to the beach with her family yesterday. Sentence2: As soon as they parked the car they had to walk one mile. Sentence3: Unfortunately it was all on the sand and it was painful. Sentence4: The sand was so hot that it burned their feet. Sentence5: Ann was yelping in pain and ran as fast as she could to the water.
Output:
Ann, Family