We have three blocks, A, B and C. Block A has one medium blue square and a medium yellow square. Below the medium yellow square there is the medium blue square. Block B is below block A. It contains a medium blue square. Finally, we have block C to the left of block B. It contains two medium blue squares. Below medium blue square number one is a medium black square. Medium blue square number one is below medium blue square number two. The medium black square is below medium blue square number two.
Are all medium squares which are above a blue square below the medium yellow square?