There are three blocks. We call them A, B and C. Block A has one medium yellow triangle, one medium blue circle and one big yellow circle. The medium yellow triangle is to the right of and below the big yellow circle. The medium blue circle is below, near to and to the right of the big yellow circle. Then, there is block B. It contains a medium yellow circle and a big yellow triangle. The medium yellow circle is to the left of and touching the big yellow triangle. Finally, above block A we have block C which is to the left of block B. It has one small blue triangle and a medium blue square. A big yellow circle is near to, to the left of and below the medium blue square.
What is above the medium yellow triangle? a big yellow triangle or a medium yellow circle?
big yellow triangle  medium yellow circle  both of them none of them