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pie
sleep
up
Let's chant!
red
robot
rubber
ruler
run
It's a .
What’s this？
door
It's a .
What’s this？
desk
It's a .
What’s this？
bird
Look, the bird can .
fly
It's the desk.
Where is the bird？
under
Where is the bird now?
It stands on the desk.
bird
desk
door
stand
under