There are two blocks, A and B. Block A is above B. Block A contains two medium yellow squares. Below medium yellow square number two there is medium yellow square number one. It also has one medium blue square. The medium blue square is below a medium black square and medium yellow square number one.. The medium black square is below medium yellow square number two and medium yellow square number one. Block B contains one medium black square.
Which object is above a medium black square? medium yellow square number two or medium yellow square number one?
medium yellow square  number two medium yellow square  number one both of them none of them