We have two blocks. Lets call them A and B. Two medium blue squares are in block A. Below a medium black square there is medium blue square number two. Below the medium black square and medium blue square number two is medium blue square number one. Block B is above block A. It contains one medium yellow square. One medium blue square is also in this block. The medium blue square is below the medium yellow square.
Which object is below a medium blue square? the medium yellow square or the medium black square?
the medium yellow square  the medium black square  both of them none of them