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