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