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