A guy with a backpack and orange bag walks past a large building.
The backpack is big
Not every guy has a big backpack.
exists e1 s1 x1 x2 x3 x4 x5 x6.(past(e1,x6) & n_building(x6) & a_large(s1) & Theme(s1,x6) & Actor(e1,x1) & v_walk(e1) & with(x1,x2) & n_bag(x4) & of(x4,x5) & n_orange(x5) & n_backpack(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_guy(x1))
exists s1 x1.(n_backpack(x1) & Theme(s1,x1) & a_big(s1))