We have three blocks, A, B and C. There is a medium blue square in block A. Below block A there is block B which has a medium black square. To the left of block B there is block C which has two medium black squares. Below medium black square number two is medium black square number one. Below the medium object which is below medium black square number two is a medium yellow square. It is below medium black square number two.
Which object is below a medium black square? medium black square number one or the medium black square that is in block B?
medium black square  number one the medium black square  that is in block B both of them none of them