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