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: Joe hated all the cars that drove by his house. Sentence2: He went to the shed and got out his ax. Sentence3: He found a large tree by the side of the road. Sentence4: He chopped away at the trunk. Sentence5: The tree fell and blocked the road.
Output:
Joe