Two Pipe-fitters weld a seam joining a large coupling.
The pipe-fitters are on their way to work in the truck.
People cannot simultaneously be welding a seam and commuting on their way to work in a truck.
exists e1 e2 s1 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_join(e2) & n_coupling(x3) & a_large(s1) & Theme(s1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_weld(e1) & n_seam(x2) & n_pipe-fitter(x1) & card_eq_2(x1))
exists p1 x1 x2 x3.(n_truck(x3) & n_way(x2) & of(x2,x1) & n_thing(x1) & n_pipe-fitter(x1) & exists p2.(on(x1,x2) & Topic(x2,p2) & exists e1.(in(e1,x3) & Actor(e1,x2) & v_work(e1))))