There are three blocks. Lets call them A, B and C. Block C is above block A and below block B. Block A has one medium blue triangle and one medium yellow triangle. The medium blue triangle is near to the medium yellow triangle. Block B contains a small blue triangle. And block C has a big yellow triangle and a medium yellow triangle. Below a medium black square there is the medium yellow triangle. Near to and to the right of the medium shape which is below the medium black square there is the big yellow triangle.
Which object is above a medium yellow triangle? the black square or the medium blue triangle?
the black square  the medium blue triangle  both of them none of them