There are three blocks. Lets call them A, B and C. Block A is to the right of C. Block C is to the left of B. Block A has a small black square. Block B contains two big black squares. Big black square number one is above big black square number two. A medium black triangle is to the left of big black square number one. It is below big black square number two. Block C contains three small yellow triangles. Small yellow triangle number one is below and near to a medium blue triangle. Small yellow triangle number two is below small yellow triangle number three. To the left of the medium blue triangle is small yellow triangle number three. There is also one big yellow triangle in this block. The big yellow triangle is to the left of and below small yellow triangle number one.
What is to the left of the small black square? a medium blue thing or a small yellow triangle?
medium blue thing small yellow triangle  both of them none of them