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