A block called AAA have a small yellow square, a small blue square and a big black circle. North of the big black circle there is the blue object. Block AAA covers a medium yellow square. A small black circle is in this block. South of, disconnected from and east of this block is another block called BBB with a big yellow square. Block AAA is close to this block. In another block named CCC there is this block.
What is the position of the medium yellow square relative to the big yellow square?