Ken: Good morning, Rose.
Rose: Good morning, Ken.
Ken: This is my friend, Dave.
Rose: Nice to meet you, Dave.
Dave: Nice to meet you, too. Let's paint.
Ken and Rose: OK.
Ken: Colour the flowers red, Dave.
Dave: OK. And I colour the butterfly (蝴蝶) blue.
Rose: I paint the cat. It's black and white.