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