We have three blocks. We call them A, B and C. Block A contains a medium blue square. Block B is above block A. It has one medium black square. Below the medium black square is a medium blue square. To the left of block A there is block C which has two medium yellow squares. This block also contains a medium black square. The medium black square is below medium yellow square number one and medium yellow square number two. Medium yellow square number one is below medium yellow square number two.
Which object is to the left of a medium blue square? the medium black square that is in block B or the medium black square which is touching the bottom edge of a block?
the medium black square  that is in block B the medium black square  which is touching the bottom edge of a block  both of them none of them