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