There are three blocks, A, B and C. Block A is above block C and to the right of block B. Block A has one medium black square. The medium black square is below a medium blue square. Block B has two medium blue squares. Below medium blue square number two there is medium blue square number one. And block C contains a medium black square.
Which object is to the left of a medium black square? medium blue square number two or the medium blue square that is in block A?
medium blue square  number two the medium blue square  that is in block A both of them none of them