There are two blocks. We call them A and B. Block A is to the right of B. Block A contains a medium yellow square. This block also has a medium black circle. To the right of and below the medium black circle there is the medium yellow square. Block B contains two small black circles. Near to a big black square and small black circle number two there is small black circle number one. It also contains a small black square. The big black square is above small black circle number two.
Which object is to the left of a medium black circle? the big black square or the yellow thing?
the big black square  the yellow thing both of them none of them