There are two blocks. Lets call them A and B. Block A contains a medium black square and a medium yellow square. The medium black square is below the medium yellow square. Below block A we have block B with two medium yellow squares in it. Below a medium black square and medium yellow square number two is medium yellow square number one. Below the medium black square there is medium yellow square number two.
Which object is below a medium black square? the medium yellow square which is in block A or medium yellow square number one?
the medium yellow square  which is in block A medium yellow square  number one both of them none of them