We have three blocks. We call them A, B and C. Block A is above B and block C is above A. Block A contains one small black triangle. It also has one big yellow square. There is also a medium black circle touching the bottom edge of this block. This shape is below, to the left of and touching the small black triangle. Block B has a big yellow circle and a small yellow triangle. The big yellow circle is touching the right edge of this block. It is below and to the right of the small yellow triangle. And block C has a medium blue square.
Which object is below a medium square? the small black triangle or the small yellow triangle?
the small black triangle  the small yellow triangle  both of them none of them