Detailed 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.
Q: Sentence1: Jeremiah really enjoyed walking. Sentence2: He decided to walk the furthest he'd ever walked. Sentence3: He looked at the map and mad a route up. Sentence4: Jeremiah set out. Sentence5: He walked all over, a grand total of twenty miles.
A:
Jeremiah