There are two blocks, called AAA and BBB. In front of block AAA is block BBB. A medium yellow triangle, a medium yellow square and a blue square are within block AAA. A big yellow square is covered by block AAA. Behind a medium black circle is the triangle. Block AAA covers the medium black circle. The medium yellow square is behind the triangle and is in front of the big yellow square. The blue thing is behind the big yellow square. A small yellow square is inside block BBB.
Where is the medium yellow triangle relative to BBB?