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