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