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