We have two blocks. We call them A and B. Block A is to the left of B. Block A has two medium yellow squares. Medium yellow square number one is below medium yellow square number two. A medium black square is below medium yellow square number two and medium yellow square number one. Block B has two medium black squares. It also has a medium yellow square. Below medium black square number two and medium black square number one there is the medium yellow square. Below medium black square number two is medium black square number one.
Which object is to the left of a medium black square? medium yellow square number one or the medium yellow square that is touching the bottom edge of a block?
medium yellow square  number one the medium yellow square  that is touching the bottom edge of a block  both of them none of them