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