There are two blocks, A and B. Block A contains a small blue circle. Block B is to the left of block A. It contains one small yellow square, a big yellow circle and one small black square. It also contains one big blue circle. It also contains one medium blue square. The small yellow square is to the left of the medium blue square and the big yellow circle. Below and near to the big blue circle there is the big yellow circle.
Which object is to the left of a small blue circle? the black square or the big yellow circle?
the black square  the big yellow circle  both of them none of them