We have two blocks. Lets call them A and B. Block A contains one medium yellow square. Above block A we have block B which contains two medium yellow squares and two other medium black squares. Medium yellow square number one is touching the bottom edge of this block. Medium black square number one is below medium black square number two. Below medium yellow square number two is medium black square number two. Medium yellow square number one is below medium black square number one , medium black square number two and medium yellow square number two.
Which object is above a medium yellow square? medium black square number one or medium black square number two?
medium black square  number one medium black square  number two both of them none of them