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