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: Brianna loved to collect seashells at the shallow waters. Sentence2: While searching she felt something touch her foot. Sentence3: Then she saw a tiny yellow fish. Sentence4: The fish kept swimming around her feet. Sentence5: It followed her around all morning.
A:
Brianna, Fish