There are two blocks, A and B. Block A is below B. Block A contains a medium blue square and one medium yellow square. The medium blue square is below the medium yellow square. Block B has one medium black square and a medium yellow square. Below the medium yellow square and the medium black square there is a medium blue square. The medium black square is below the medium yellow square.
Which object is above a medium blue square? the medium yellow square which is in block B or the medium yellow square that is in block A?
the medium yellow square  which is in block B the medium yellow square  that is in block A both of them none of them