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