We have two blocks. Lets call them A and B. Block A is below B. Block A contains a medium blue square. Below the medium blue square there is a medium yellow square. Block B has a medium yellow square, one medium black square and a medium blue square. The medium yellow square is touching the bottom edge of this block. It is below the medium blue square and the medium black square. The medium black square is below the medium blue square.
Which object is below a medium blue square? the medium yellow square that is touching the bottom edge of a block or the medium black square?
the medium yellow square  that is touching the bottom edge of a block  the medium black square  both of them none of them