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