There are two blocks. We call them A and B. Block A is to the right of B. Block A has one medium yellow square. A medium blue square is also in this block. Below the medium blue square there is the medium yellow square. Block B has two medium blue squares and two other medium black squares. Medium blue square number one is below medium black square number one , medium black square number two and medium blue square number two. Below medium black square number one is medium blue square number two. Below medium black square number two there is medium black square number one.
Which object is to the left of a medium 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