Welders working at night with sparks flying.
The welders are talking to each other.
The welders are talking that doesn't mean they're talking to each other.
exists e1 e2 x1 x2 x3.(Actor(e2,x3) & v_fly(e2) & with(e1,x3) & n_sparks(x3) & at(e1,x2) & n_night(x2) & Actor(e1,x1) & v_work(e1) & n_welder(x1))
exists e1 x1.(n_welder(x1) & all x2.(n_other(x2) -> to(e1,x2)) & Actor(e1,x1) & v_talk(e1))