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: Rachel really wanted to buy a new iPhone. Sentence2: So, Rachel decided to go to the Apple store. Sentence3: At the Apple store, there were a lot of phones to buy. Sentence4: Rachel picked out the best model and purchased it. Sentence5: Rachel liked her new phone, but it was very expensive.
Rachel