There are two blocks, A and B. Block A contains a big black triangle and one medium black circle. Below the medium black circle is the big black triangle. To the left of block A there is block B which has a big blue triangle and a small blue square. It also has a medium blue circle. Below, to the left of and near to the medium blue circle there is the big blue triangle.
What is to the left of the medium black circle? a medium blue circle or a big black triangle?
medium blue circle  big black triangle  both of them none of them