We have three blocks. Lets call them A, B and C. Block A is above C and block B is above A. Block A has one medium yellow square. Block B contains a medium blue square and one medium yellow square. This block also contains a medium black square. Below the medium blue square and the medium yellow square there is the medium black square. Below the medium yellow square is the medium blue square. Block C has a medium yellow square.
Which object is above 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