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