We have three blocks, A, B and C. One medium blue square is in block A. To the left of block A is block B which contains two medium black squares. Below medium black square number two there is medium black square number one. Above block A there is block C with one medium black square and a medium yellow square in it. The medium black square is below the medium yellow square.
What is to the left of the blue thing? a yellow object or a medium black square?
yellow object medium black square  both of them none of them