We have three blocks, A, B and C. One big yellow triangle is in block A. A big blue square is touching the right edge of this block. The big yellow triangle is touching the right edge of this block. Below the big yellow triangle is the big blue square. Then, there is block B which contains one medium blue square. To the left of both blocks B and A there is block C. It has one small yellow circle and one big yellow square. There is also one big blue triangle in this block. To the left of the big blue triangle there is the small yellow circle. The big yellow square is to the left of and below the big blue triangle.
Which object is to the left of a blue square? the big blue square or the big yellow triangle?
the big blue square  the big yellow triangle  both of them none of them