Welders working at night with sparks flying.
sparks fly while welders work at night on a freeway
sparks fly that doesn't mean when they work at night on a freeway
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 p1 x1.(exists e2 x2 x3 x4.(on(e2,x4) & n_freeway(x4) & at(e2,x3) & n_night(x3) & Actor(e2,x2) & v_work(e2) & n_welder(x2)) & while(e1,p1) & Actor(e1,x1) & v_fly(e1) & n_sparks(x1))