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: Neil Trained very hard at NASA to be an astronaut. Sentence2: He finally was scheduled for a mission to the space station. Sentence3: Neil was very excited and quite a bit nervous too. Sentence4: When the day came he was ready and willing to go to space. Sentence5: Neil blasted off without trouble and had a great trip.
Output:
Neil