There are two blocks. We call them A and B. Block A is above B. Block A has two medium blue squares. Medium blue square number one is below medium blue square number two. There is also a medium black square touching the bottom edge of this block. The medium black square is below medium blue square number two and medium blue square number one. Block B contains two medium black squares. Medium black square number one is below medium black square number two.
Which object is above a medium black square? medium blue square number one or medium blue square number two?
medium blue square  number one medium blue square  number two both of them none of them