Given the task definition and input, reply with output. 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: Harry moved to Tanzania to get back to nature. Sentence2: He gave away all his belongings and joined the Hadza tribe. Sentence3: Harry couldn't obtain all the essentials to survive on his own. Sentence4: He became part of an Actual partnership to increase his productivity. Sentence5: Harry and his partner forage together better than on their own.
Actual partnership, Hadza tribe, His partner, Harry