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