There are three blocks. Lets call them A, B and C. Block A has a medium yellow square and a medium blue square. Below the medium blue square is the medium yellow square. Block B is above block A. It contains a medium blue square and a medium yellow square. It also has a medium black square. Below the medium black square is the medium yellow square.. Below the medium black square there is the medium blue square. This object is below the yellow shape which is below the medium black square. Finally, there is block C. It is above block A. It contains a medium black square.
Which object is below a medium blue square? the medium yellow square which is in block B or the medium yellow square which is in block A?
the medium yellow square  which is in block B the medium yellow square  which is in block A both of them none of them