We have three blocks, A, B and C. One medium yellow square is in block A. Block B is to the left of block A. It has one medium blue triangle, one medium black triangle and a medium yellow triangle. The medium black triangle is near to a big yellow square. It is touching the bottom edge of this block. It is to the left of the medium yellow triangle. The medium blue triangle is to the left of the medium yellow triangle which is to the right of the big yellow square. This object is near to the big yellow square. Above block A there is block C. It contains one small yellow square.
Which object is to the left of a medium yellow square? the big object or the small yellow square?
the big object the small yellow square  both of them none of them