We have two blocks, A and B. One small blue square, a big blue square and one big yellow triangle are in block A. It also contains one medium yellow triangle. The big blue square is below and near to the big yellow triangle. The big yellow triangle is far from and above the medium yellow triangle.. Above the big blue square there is the small blue square. Above block A we have block B with a big black triangle, a medium blue circle and one medium yellow triangle in it. The medium blue circle is touching the right edge of this block. The medium yellow triangle is touching the bottom edge of this block. Above, to the left of and far from the medium yellow triangle there is the big black triangle. Above the medium yellow triangle there is the medium blue circle.
What is above the big yellow triangle? a medium yellow triangle or a big blue square?
medium yellow triangle  big blue square  both of them none of them