There are two blocks. We call them A and B. Two medium black squares are in block A. Below a medium blue square, medium black square number two and a medium yellow square is medium black square number one. Medium black square number two is below the medium blue square. Medium black square number one is touching the bottom edge of this block. Below the medium blue square is the medium yellow square. Block B is to the right of block A. It has a medium black square.
Which object is to the left of a medium black square? the yellow thing or the medium blue square?
the yellow thing the medium blue square  both of them none of them