Nack: Good morning, Mary.
Mary: Good morning, Nack.
Nack: I got up at 11 this morning.
Mary: Oh, you got up too late.
Nack: Yes, but I also got up at 6 this morning.
I once got up at 6 this morning.
Mary: But..?
Nack: But I slept twice.
Mary: So, you got up at 11 this morning.
Nack: That's right.
