There are two blocks, A and B. A small yellow square, a small black square and a medium yellow triangle are in block A. A big black circle is to the right of the small black square and the medium yellow triangle. Block B is to the right of block A. It contains one small yellow square.
Which object is to the left of a small yellow square? the big object or the medium yellow triangle?
the big object the medium yellow triangle  both of them none of them