A factory worker is wearing an orange hard hat while working.
A worker wears a hard hat to avoid having an accident like he did in the past.
A factory worker is wearing an orange hard hat while working does not indicate that he avoid having an accident like he did in the past.
exists e2 e1 s1 x1 x2 x3 x4.(while(e1,e2) & Actor(e2,x1) & v_work(e2) & Theme(e1,x3) & Actor(e1,x1) & v_wear(e1) & n_hat(x3) & a_hard(s1) & Theme(s1,x3) & of(x3,x4) & n_orange(x4) & n_worker(x1) & of(x1,x2) & n_factory(x2))
exists e1 p1 s1 x1 x2 x4.(n_past(x4) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & Topic(x2,p1) & exists e2 p2.(exists e3 p3 x3.(Theme(e3,x3) & Actor(e3,x2) & v_have(e3) & exists e4.(in(e4,x4) & Actor(e4,x1) & v_do(e4)) & like(x3,p3) & n_accident(x3)) & Topic(e2,p2) & Actor(e2,x2) & v_avoid(e2)) & n_male(x1) & n_hat(x2) & a_hard(s1) & Theme(s1,x2) & n_worker(x1))