Mary: What are you gonna do today, Nack?
Nack: I'm gonna tape youtube after this talk.
Mary: What about are you gonna tape youtube?
What youtube are you gonna tape?
Nack: It's about World history.
Mary: Are you studying about World history?
Nack: Yes, I am.
Mary: How long have you been studying World history?
Nack: It's about for 2 months. I've studied it since April this year.
Mary: I see. How do you learn?
Nack: I bought a textbook. Then I draw mindmaps.
Mary: Wow, you like mindmap.
Nack: Yes.
