We have two blocks. Lets call them A and B. There are one small yellow square and a medium black square in block A. It also contains one medium blue triangle. Below the small yellow square is the medium blue triangle. Near to and above the medium black square there is the small yellow square. Block B is below block A. It has two medium black circles. Medium black circle number one is below medium black circle number two. This block also contains a small blue square and one big black circle. The big black circle is to the left of, near to and below medium black circle number two. The small blue square is above medium black circle number one. It is to the right of the circle which is to the left of medium black circle number two.
What is below the medium black square? a small yellow square or a small blue square?
small yellow square  small blue square  both of them none of them