We have three blocks. Lets call them A, B and C. Block A is to the left of C. Block B is above A. Block A has one medium yellow square and a medium black square. Below the medium black square is the medium yellow square. Block B has a medium blue square. A medium yellow square is below the medium blue square. Block C has one medium black square.
Which object is below a blue thing? the medium black square which is in block C or the medium black square that is in block A?
the medium black square  which is in block C the medium black square  that is in block A both of them none of them