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