We have three blocks. Lets call them A, B and C. Block C is to the right of A. Block A is below B. Block A contains two medium black squares. There is also one medium yellow square in this block. There is also a medium blue square in this block. It is below medium black square number two which is below the medium yellow square. This object is below the medium yellow square. Medium black square number one is below the medium yellow square and the medium blue square. Block B contains one medium yellow square. Block C contains a medium blue square.
Which object is below 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