There are three blocks. Lets call them A, B and C. Block A is below block B and above block C. Block A contains one medium black square. Block B has a medium blue square and one medium black square. The medium blue square is below the medium black square. Block C contains a medium black square and a medium yellow square. A medium blue square is below the medium yellow square. The medium black square is below the medium yellow square. Below the medium black square is the medium blue square.
Are all medium things which are above a medium black thing, below a medium thing which is above a yellow object?
This example is Yes.