There are two blocks. Lets call them A and B. Block A contains two medium black squares. Medium black square number one is below medium black square number two and a medium yellow square. This block also has a medium blue square. It is below medium black square number two and the medium yellow square. Below medium black square number two there is the medium yellow square. Above block A we have block B. It contains a medium black square.
Which object is below a medium square? medium black square number two or the medium black square that is in block B?
medium black square  number two the medium black square  that is in block B both of them none of them