We have three blocks, A, B and C. Block A is above block C and below block B. Block A contains two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. It is below medium yellow square number two. Block B has one medium black square. Block C contains two medium black squares. Below medium black square number two and a medium blue square there is medium black square number one. The medium blue square is below medium black square number two.
Which object is below a medium yellow square? medium black square number two or the medium black square which is in block B?
medium black square  number two the medium black square  which is in block B both of them none of them