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