There are two blocks, A and B. Block A is below B. Block A contains a medium black square. Block B has three medium black squares. It also has one medium yellow square. Medium black square number one is touching the bottom edge of this block. Below the medium yellow square there is medium black square number three. Below medium black square number two and the medium yellow square there is medium black square number one.. Medium black square number two is below the medium black square number three. It is below the medium yellow square.
Which object is above a medium black square? medium black square number three or medium black square number two?
medium black square  number three medium black square  number two both of them none of them