There are two blocks. We call them A and B. Block A is below B. Block A contains a medium black square. Block B contains two medium blue squares. Medium blue square number one is below medium blue square number two and a medium black square. Below medium blue square number one and medium blue square number two there is a medium yellow square. Below medium blue square number two there is the medium black square.
Which object is above a medium blue square? the medium black square that is in block A or the medium black square that is in block B?
the medium black square  that is in block A the medium black square  that is in block B both of them none of them