We have two blocks, A and B. Block A contains one medium yellow square. Above block A there is block B. It contains two medium blue squares. Medium blue square number one is below a medium black square and a medium yellow square. Below the medium black square there is medium blue square number two. The medium yellow square is below medium blue square number two and the medium black square.
Which object is above a medium yellow square? medium blue square number two or medium blue square number one?
medium blue square  number two medium blue square  number one both of them none of them