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.

Sentence1: Courtney had always loved math. Sentence2: In 8th grade she scored a 100% on here Algebra EOC exam. Sentence3: Her teacher was very impressed. Sentence4: She recommended Courtney for a special magnet school. Sentence5: Her recommendation is what led to Courtney's acceptance.
Teacher, Courtney