There are three blocks. Lets call them A, B and C. Blocks A and C are below B. Block A contains one medium black square. Block B contains two medium yellow squares. Below medium yellow square number two there is medium yellow square number one. And block C contains two medium blue squares. Below medium blue square number two is medium blue square number one.
Which object is below a medium yellow square? medium blue square number two or medium blue square number one?
medium blue square  number two medium blue square  number one both of them none of them