Two blocks, named AAA and BBB exist. Block AAA has a small yellow circle. A big blue square, a small blue circle and a medium black thing are within this block. The small blue circle is to the south of the medium black thing. To the south of and disconnected from block AAA is block BBB. Away from this block there is block AAA. A small yellow triangle is inside and a small yellow square is covered by block BBB.
Where is the medium black thing regarding the small yellow triangle?