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