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