There are three blocks, A, B and C. Block A is to the right of block B and to the left of block C. Block A has a medium blue square. Block B has two medium black squares and two other medium yellow squares. Medium black square number one is touching the bottom edge of this block. Medium black square number two is below medium yellow square number two. Medium yellow square number one is below medium black square number two. Medium black square number one is below medium yellow square number one , medium yellow square number two and medium black square number two. And block C has two medium black squares. Below medium black square number two there is medium black square number one.
Which object is to the left of a medium black square? medium yellow square number two or medium yellow square number one?
medium yellow square  number two medium yellow square  number one both of them none of them