Mary: Hi, Nack.
Nack: Hi, Mary.
Mary: What did you do last night?
Nack: I watched youtube videos last night.
Mary: What videos did you watch?
Nack: I watched videos about World history.
Mary: You're into World history, aren't you?
Nack: Haha.
Mary: Good talk. Bye.
Nack: Bye, Mary.
