answer: Smith invites Mister Lee, a successful inventor of a popular smartphone app, to speak with the children.
documents: #Person1#: Today, we've invited a former student at our school to speak with us, so pay attention children. Mister Lee is a successful inventor of a popular smartphone app.
  #Person2#: Thanks for having me, Miss Smith.
  #Person1#: We're glad you could take the time. Now, how does it feel to be so successful at such a young age?
  #Person2#: Well, I sometimes feel a little worried and it's hard running a new company.
  #Person1#: You have your own company? Great, then surely you must feel proud to have done so well so quickly.
  #Person2#: Well, I'm probably the only 19-year-old in the millionaires club, and thank you for this opportunity to speak here, Miss Smith. I didn't really know I could speak to so many people without getting nervous.