There are two blocks. We call them A and B. Block A is to the left of B. Block A contains two medium black squares. This block also contains one medium blue square. Below medium black square number one and medium black square number two there is the medium blue square. Below medium black square number two there is medium black square number one. Block B contains a medium blue square and a medium black square. Below the medium black square is the medium blue square.
Which object is to the left of a medium blue square? the medium black square which is in block B or medium black square number one?
the medium black square  which is in block B medium black square  number one both of them none of them