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