There are two blocks, A and B. Block A contains a medium blue triangle and one small blue square. Near to the small blue square there is the medium blue triangle. To the right of a big black square there is a big yellow square. Near to and below the big black square there is the small blue square.. The medium blue triangle is to the left of the big black square. To the left of block A there is block B which has one big yellow circle, a big black triangle and a small yellow square. The big black triangle is touching the bottom edge of this block. It is to the left of the small yellow square. A medium blue triangle is also touching the bottom edge of this block. To the right of and above the big black triangle there is the big yellow circle. This object is below and touching the small yellow square.
Which object is to the left of a medium blue triangle? the big yellow circle or the big yellow square?
the big yellow circle  the big yellow square  both of them none of them