city workers beside a tree grinder.
There are workers far from a tree grinder
The workers could not be standing beside the tree grinder if they were far away from it.
exists x1 x2 x3 x4.(a_topic(x1) & beside(x1,x3) & n_grinder(x3) & of(x3,x4) & n_tree(x4) & n_worker(x1) & of(x1,x2) & n_city(x2))
exists p1 x1 x2 x3.(r_far(p1) & from(p1,x2) & n_grinder(x2) & of(x2,x3) & n_tree(x3) & exists x4.((x1 = x4) & n_worker(x4)))