We have two blocks, A and B. Block A contains a medium black square. To the left of block A there is block B with a medium black square, one medium yellow circle and a medium black triangle in it. There is also one big black triangle in this block. The medium black square is touching the bottom edge of this block. This shape is to the left of the medium black triangle and the medium yellow circle. It is to the right of and below the big black triangle.
Which object is to the left of a medium black square? the medium black square that is touching the bottom edge of a block or the big black triangle?
the medium black square  that is touching the bottom edge of a block  the big black triangle  both of them none of them