There are three blocks. We call them A, B and C. There are a medium yellow square, one medium blue square and one medium black square in block A. The medium yellow square is touching the bottom edge of this block. It is below the medium black square and the medium blue square. The medium blue square is below the medium black square. Then, there is block B with a medium black square in it. Finally, to the left of block A we have block C. It is below block B. It contains a medium yellow square.
Are all medium yellow squares below a medium black square?