We have three blocks, A, B and C. Block A has a big black triangle, one small blue square and a medium blue square. Below the medium blue square is the small blue square. Above the small blue square and the medium blue square there is the big black triangle. Block B is to the left of block A. It contains one small yellow triangle. To the right of block B there is block C with one big yellow triangle in it.
Which object is above a small blue square? the medium blue square or the small yellow triangle?
the medium blue square  the small yellow triangle  both of them none of them