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