We have three blocks. We call them A, B and C. Block B is above C. Block C is above A. Block A has two medium black squares. It also has a medium blue square. Medium black square number one is below the medium blue square and medium black square number two. Below the medium blue square there is medium black square number two. Block B contains one medium black square. And block C has one medium black square.
Which object is below a medium black square? the medium black square that is in block B or medium black square number two?
the medium black square  that is in block B medium black square  number two both of them none of them