There are two blocks. Lets call them A and B. Block A contains two medium yellow squares and two other medium black squares. Medium yellow square number one is touching the bottom edge of this block. Below medium black square number one and medium black square number two there is medium yellow square number two. Medium black square number one is below medium black square number two. Medium yellow square number one is below medium black square number two. It is below medium black square number one. Block B is above block A. It contains one medium blue square.
What is below the blue object? a medium black square or a object that is touching the bottom edge of a block?
medium black square  object that is touching the bottom edge of a block  both of them none of them