There are two blocks. Lets call them A and B. There are two medium yellow squares in block A. Medium yellow square number one is touching the bottom edge of this block. Medium yellow square number one is below medium yellow square number two and a medium blue square. Below medium yellow square number two there is the medium blue square. Block B is above block A. It contains two medium blue squares. Medium blue square number one is touching the bottom edge of this block. It is below medium blue square number two.
Which object is below a medium blue square? the medium yellow square which is touching the bottom edge of a block or medium yellow square number two?
the medium yellow square  which is touching the bottom edge of a block  medium yellow square  number two both of them none of them