There are two blocks, A and B. There is one medium yellow square in block A. Block B is above block A. It contains two medium black squares. Below a medium yellow square and medium black square number two is medium black square number one. Below medium black square number two , the medium yellow square and medium black square number one is a medium blue square.
Which object is below a blue thing? the medium yellow square which is in block B or the medium yellow square that is in block A?
the medium yellow square  which is in block B the medium yellow square  that is in block A both of them none of them