We have three blocks. Lets call them A, B and C. Block A is to the right of block C and to the left of block B. Block A contains one medium black square. Block B contains one medium black square and a medium yellow square. Below the medium yellow square is the medium black square. And block C has two medium blue squares. Below medium blue square number two is medium blue square number one.
Which object is to the left of a medium black square? medium blue square number one or medium blue square number two?
medium blue square  number one medium blue square  number two both of them none of them