We have three blocks, A, B and C. Block A has two big blue triangles. Near to, below and to the left of a medium yellow square which is to the right of and below a big yellow square there is big blue triangle number one. To the right of the big yellow square there is big blue triangle number two. It also has one small blue circle. Then, we have block B. It has a big yellow circle, one small black square and one small blue circle. The big yellow circle is above a big blue triangle and the small black square. It is near to the small blue circle. Finally, we have block C. It is above block A and below block B. It contains one big yellow circle, one medium blue triangle and one small blue circle. There is also a small yellow triangle in this block. Above the small blue circle and the medium blue triangle is the big yellow circle. The medium blue triangle is near to the small blue circle. Below the small yellow triangle there is the small blue circle. Below the small yellow triangle there is the medium blue triangle.
Which object is above a big yellow square? the medium blue triangle or the medium yellow square?
the medium blue triangle  the medium yellow square  both of them none of them