We have three blocks. Lets call them A, B and C. There is one medium blue square in block A. Then, there is block B. It has two medium blue squares. This block also contains one medium black square. It is below medium blue square number two. Below medium blue square number two and the medium black square is medium blue square number one. Finally, to the left of block B we have block C. It is to the left of block A. It contains a medium yellow square.
What is to the right of the yellow thing? a medium blue square or a medium black square?
medium blue square  medium black square  both of them none of them