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: Travis was preparing for his long weekend hunting trip with friends. Sentence2: He had packed his rifle and all the camping gear he would need. Sentence3: The weather was looking perfect, but he still brought a rainy coat. Sentence4: His friends picked him up, and they began talking about the weekend. Sentence5: When they arrived at the site, it began to rainy very heavily.
Output:
Travis, Friends