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