There are two blocks. We call them A and B. Block A is to the right of B. Block A has a medium blue triangle. Block B has one big black triangle, one big yellow circle and a medium black circle. To the right of a big blue triangle is the big black triangle. This object is above the medium black circle. The big yellow circle is touching the bottom edge of this block. To the right of and below the big blue triangle there is the medium black circle. Below the big blue triangle there is the big yellow circle. It is to the left of the medium object which is to the right of the big blue triangle.
What is to the right of the medium black circle? a big blue triangle or a medium blue triangle?
big blue triangle  medium blue triangle  both of them none of them