There are three blocks. Lets call them A, B and C. Block A is to the left of C. Block B is below A. Block A contains one medium blue square. Block B has a medium blue square. A medium black square is below the medium blue square. Block C has four medium yellow squares. Medium yellow square number one is below medium yellow square number four , medium yellow square number two and medium yellow square number three. Below medium yellow square number four is medium yellow square number two. Below medium yellow square number four there is medium yellow square number three.
Which object is above a medium yellow square? medium yellow square number three or medium yellow square number two?
medium yellow square  number three medium yellow square  number two both of them none of them