A block named AAA have a big black square, a medium black circle and a small black square. A blue triangle is in this block. The small black square is behind the medium black circle. A block named BBB exists in the image. There is a block called CCC. Block CCC have a small black square and a medium blue square. This block covers a big black circle which is in front of the small black square. To the north of and behind this object is the medium blue square.
Where is the big black square relative to AAA?