We have two blocks. Lets call them A and B. Block A has two medium yellow squares. Medium yellow square number one is below medium yellow square number two. Block B is below block A. It contains two medium black squares. Below a medium yellow square and medium black square number two is medium black square number one. Medium black square number two is below the medium yellow square.
Which object is above a medium black square? medium yellow square number one or medium yellow square number two?
medium yellow square  number one medium yellow square  number two both of them none of them