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