There are three blocks. We call them A, B and C. Block C is to the left of B and block A is to the left of C. Block A has one big black circle and one medium blue square. Below a big yellow circle and the medium blue square there is the big black circle. Below the big yellow circle is the medium blue square. Block B contains a medium yellow triangle. Block C contains two medium yellow triangles. There are also a small yellow square and one medium blue circle in this block. A small yellow circle is also in this block. This object is below the small yellow square. Medium yellow triangle number one is to the right of, near to and below medium yellow triangle number two which is to the left of the medium blue circle.
Which object is to the left of a medium yellow triangle? the small yellow square or the black circle?
the small yellow square  the black circle  both of them none of them