We have two blocks. We call them A and B. Block A is above B. Block A contains two medium yellow squares and two other medium black squares. Medium yellow square number one is below medium yellow square number two , medium black square number two and medium black square number one. Below medium black square number two is medium yellow square number two. Medium black square number one is below medium black square number two. Block B has two medium yellow squares. Below medium yellow square number two is medium yellow square number one.
Which object is above a medium yellow 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