There are three blocks. We call them A, B and C. Block A is to the left of C and block C is below B. Block A has one medium black square and one medium yellow square. The medium black square is below the medium yellow square. Block B has one medium yellow square. It also has a medium blue square. Below the medium yellow square there is the medium blue square. And block C has one medium blue square.
Is there a medium blue square below all medium yellow squares?