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