There are two blocks, A and B. Three medium blue squares are in block A. Medium blue square number one is touching the bottom edge of this block. Below medium blue square number three there is medium blue square number two. Medium blue square number one is below medium blue square number three and medium blue square number two. Below block A there is block B with one medium yellow square and a medium black square in it. Below the medium black square is the medium yellow square.
What is above the black thing? a yellow thing or a medium blue square?
yellow thing medium blue square  both of them none of them