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