We have three blocks. We call them A, B and C. Block A is below C. Block C is to the right of B. Block A contains one small blue square. The small blue square is to the left of a medium yellow triangle. Block B contains a medium blue square and one big blue square. The medium blue square is to the left of the big blue square. And block C has one big yellow circle.
Which object is to the left of a big yellow shape? the big blue square or the medium yellow triangle?
the big blue square  the medium yellow triangle  both of them none of them