There are two blocks. Lets call them A and B. Block A contains two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. It is below medium yellow square number two. To the left of block A there is block B. It has two medium blue squares. This block also contains one medium black square. Below the medium black square there is medium blue square number two. Below the square which is below the medium black square there is medium blue square number one. It is below the medium black square.
What is to the left of the thing that is touching the bottom edge of a block? a medium yellow square or a medium black square?
medium yellow square  medium black square  both of them none of them