We have three blocks. Lets call them A, B and C. Block B is below A. Block A is below C. Block A contains two small yellow circles. Below and to the left of small yellow circle number two there is small yellow circle number one. There is also a medium black square touching the bottom edge of this block. The medium black square is to the right of small yellow circle number two. Block B contains a big blue circle. Block C has one medium yellow circle.
What is below the medium yellow circle? a small yellow circle or a big blue circle?
small yellow circle  big blue circle  both of them none of them