We have three blocks. Lets call them A, B and C. Block A has a medium blue square. Below the medium blue square is a medium yellow square. Then, there is block B with two medium yellow squares in it. Below medium yellow square number two is medium yellow square number one. Block C is above both blocks A and B. It has a medium black square. The medium black square is below a medium yellow square.
Which object is below a medium yellow square? the blue thing or the medium black square?
the blue thing the medium black square  both of them none of them