We have two blocks, A and B. Block A has one medium yellow square. Block B is above block A. It contains two medium black squares and two other medium blue squares. Medium black square number one is below medium black square number two , medium blue square number two and medium blue square number one. Below medium blue square number two there is medium black square number two. It is below medium blue square number one.
Which object is below 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