We have three blocks. We call them A, B and C. Block A contains one medium yellow square. To the right of block A there is block B which has one medium blue square. To the right of block A there is block C with two medium blue squares in it. Medium blue square number one is below a medium black square and medium blue square number two. Medium blue square number two is below the medium black square.
What is to the right of the yellow thing? a medium blue square or a black thing?
medium blue square  black thing both of them none of them