There are three blocks. We call them A, B and C. Block B is above and A is below C. Block A has two medium black squares. This block also has one medium yellow square. It is below medium black square number two. Medium black square number one is below medium black square number two and the medium yellow square. Block B has one medium black square. Block C has a medium blue square.
What is below the blue thing? a medium black square number two or a medium black square that is in block B?
medium black square  number two medium black square  that is in block B both of them none of them