We have three blocks. We call them A, B and C. One medium blue square is in block A. Above block A we have block B which has two medium yellow squares. Below a medium blue square and medium yellow square number two there is medium yellow square number one. Below the medium blue square there is medium yellow square number two. Above block B there is block C which has one medium blue square.
Which object is below a medium yellow square? the medium blue square that is in block B or the medium blue square that is in block C?
the medium blue square  that is in block B the medium blue square  that is in block C both of them none of them