user
Two brothers we are, great burdens we bear, all day we are bitterly pressed, yet this must say, we are full all day, and empty when we go to rest. 
A: we are Brothers
B: kicking
C: we lay eggs
D: we are shoes
E: fill up
assistant
<|begin_of_thought|>

Deep Thought is thinking for 7.5 million years.

<|end_of_thought|>

<|begin_of_solution|>

D

<|end_of_solution|>