We have three blocks. We call them A, B and C. There are a big yellow square and one big blue square in block A. A medium yellow triangle is touching the bottom edge of this block. It is below and far from the big yellow square. It is to the left of the big blue square. To the right of block A we have block B which contains a small blue square. To the left of a big blue square is the small blue square. Finally, there is block C which is below block A. It contains a big black square.
Which object is to the left of a big blue square? the big yellow square or the medium yellow triangle that is touching the bottom edge of a block?
the big yellow square  the medium yellow triangle  that is touching the bottom edge of a block  both of them none of them