We have two blocks. We call them A and B. Block A contains one medium blue square. A medium yellow square is below the medium blue square. Below block A we have block B. It contains two medium blue squares. It also has a medium yellow square. It is below medium blue square number two.. Medium blue square number one is touching the bottom edge of this block. It is below the medium yellow square and medium blue square number two.
Which object is below a medium yellow square? medium blue square number two or the medium blue square which is in block A?
medium blue square  number two the medium blue square  which is in block A both of them none of them