We have three blocks, A, B and C. A medium yellow square and one medium blue square are in block A. The medium yellow square is below the medium blue square. Below block A is block B which has a medium blue square. Below block B there is block C with a medium black square and one medium yellow square in it. The medium black square is below the medium yellow square.
Which object is below a medium yellow 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