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