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