We have three blocks, A, B and C. There is a medium yellow square in block A. To the left of block A we have block B which contains a medium blue square. Above block B there is block C with two medium black squares in it. It also contains one medium blue square. Below the medium blue square is medium black square number two.. Medium black square number one is below medium black square number two and the medium blue square.
Which object is below a medium blue 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