We have three blocks, A, B and C. There are one small black square, a medium black square and one small blue square in block A. Below and to the left of the small blue square there is the medium black square. Above the small blue square there is the small black square. Above block A is block B. It contains one big yellow square. To the left of block B there is block C which has a small blue circle.
What is to the left of the small blue square? a medium black square or a small black square?
medium black square  small black square  both of them none of them