There are three blocks. Lets call them A, B and C. Block B is below A. Block A is below C. Block A has one medium yellow square. Block B has a medium blue square and a medium yellow square. It also has a medium black square. The medium yellow square is below the medium black square. The medium blue square is below the medium black square and the medium yellow square. And block C contains one medium yellow square.
Which object is below a medium yellow square? the medium yellow square that is in block C or the medium yellow square which is in block B?
the medium yellow square  that is in block C the medium yellow square  which is in block B both of them none of them