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.
Problem:Sentence1: Francis found a squirrel in his college's student yard. Sentence2: The squirrel wasn't afraid of him and approached him. Sentence3: He had some nuts in his backpack, so he offered them to the squirrel. Sentence4: The squirrel took them and now shows up when Francis is in the yard. Sentence5: Francis regularly feeds the squirrel almonds he brings.
Solution:
Francis, Squirrel