There are two blocks. Lets call them A and B. Block A is to the left of B. Block A has two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. Medium yellow square number two is below a medium black square. Medium yellow square number one is below the medium object which is below the medium black square. It is below the medium black square. Block B has one medium blue square. This block also contains a medium yellow square. The medium blue square is touching the bottom edge of this block. It is below the medium yellow square.
What is below the black thing? a medium yellow square number two or a medium yellow square which is in block B?
medium yellow square  number two medium yellow square  which is in block B both of them none of them