There are two blocks. We call them A and B. Two medium yellow squares are in block A. Below a medium blue square and medium yellow square number two there is medium yellow square number one. Medium yellow square number two is below the medium blue square. Above block A we have block B. It contains three medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. Below medium yellow square number three there is medium yellow square number two. Below medium yellow square number three and medium yellow square number two there is medium yellow square number one.
What is above the thing that is touching the bottom edge of a block? a blue object or a medium yellow square?
blue object medium yellow square  both of them none of them