There are three blocks. Lets call them A, B and C. Block B is below C and block C is to the left of A. Block A contains a medium blue triangle and one medium blue square. The medium blue triangle is to the left of and below the medium blue square. Block B has a big black circle. And block C contains one medium yellow square, one medium black square and a small black circle. The small black circle is below a big yellow triangle. A big black triangle is touching the left edge of this block. This shape is to the left of the big yellow triangle. The medium yellow square is near to the big black triangle and the small black circle.
What is to the left of the medium blue square? a medium blue triangle or a big yellow triangle?
medium blue triangle  big yellow triangle  both of them none of them