We have three blocks, A, B and C. There is one medium blue square in block A. Then, we have block B with two medium yellow squares in it. This block also contains a medium blue square and a medium black square. The medium blue square is below the medium black square and medium yellow square number two. Medium yellow square number two is below the medium black square. Medium yellow square number one is below medium yellow square number two and the medium blue square. Block C is above block B. Block A is below it. It has one medium black square.
Which object is below 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