There are three blocks. Lets call them A, B and C. Block C is above B. Block B is below A. Block A contains one medium black square and one medium yellow square. The medium black square is touching the bottom edge of this block. It is below the medium yellow square. Block B contains one medium black square. Block C contains one medium blue square. A medium black square is also in this block. The medium blue square is below the medium black square.
Which object is above a medium black square? the yellow thing or the medium blue square?
the yellow thing the medium blue square  both of them none of them