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: Nelly bought a smartphone but had no clue how to use it. Sentence2: She read the instructions but they didn't help. Sentence3: She called a phone representative but still she didn't understand. Sentence4: She went to see her nephew who was only six years old. Sentence5: And he showed her how to use her phone.
A:
Nelly, Phone representative, Nephew