There are two blocks, A and B. Block A contains a medium black triangle and a small black square. The medium black triangle is to the left of the small black square. Block B is to the right of block A. It contains two medium yellow squares. One small blue square is also in this block. Medium yellow square number one is touching the right edge of this block.. Below medium yellow square number two and medium yellow square number one there is the small blue square.
Which object is to the left of a medium yellow square? the small black square or the medium triangle?
the small black square  the medium triangle  both of them none of them