There are three blocks. We call them A, B and C. Block B is to the left of block C and to the right of block A. Block A contains a medium black square. Block B contains two medium black squares. This block also has one medium yellow square. The medium yellow square is below medium black square number two and medium black square number one. Medium black square number one is below medium black square number two. And block C contains a medium blue square.
Which object is to the left of a medium square? the medium black square that is in block A or medium black square number one?
the medium black square  that is in block A medium black square  number one both of them none of them