We have three blocks. We call them A, B and C. Block A is to the left of and C is to the right of B. Block A has a medium blue square. Block B has a medium black square and a medium yellow square. The medium black square is touching the bottom edge of this block. It is below the medium yellow square. Block C has two medium yellow squares. Medium yellow square number one is touching the bottom edge of this block. Below a medium black square is medium yellow square number two. Below medium yellow square number two and the medium black square there is medium yellow square number one.
Which object is to the left of a medium black square? the medium yellow square that is in block B or the medium yellow square that is touching the bottom edge of a block?
the medium yellow square  that is in block B the medium yellow square  that is touching the bottom edge of a block  both of them none of them