There are three blocks, A, B and C. There is one medium black square in block A. Then, there is block B. It contains three medium yellow squares. Medium yellow square number one is below medium yellow square number three and medium yellow square number two. Medium yellow square number two is below medium yellow square number three. Finally, we have block C above block A and below block B. It has a medium blue square.
Which object is above a medium square? medium yellow square number one or medium yellow square number two?
medium yellow square  number one medium yellow square  number two both of them none of them