A group of men wearing hard hats and orange reflector vests are commemorating an event.
some men wearing hats
A group of men wearing hard hats are some men wearing hats.
exists e2 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9.(Theme(e2,x9) & Actor(e2,x1) & v_commemorate(e2) & n_event(x9) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_wear(e1) & subset_of(x6,x4) & n_vest(x6) & of(x6,x8) & n_reflector(x8) & of(x6,x7) & n_orange(x7) & subset_of(x5,x4) & n_hat(x5) & a_hard(s1) & Theme(s1,x5) & (x2 = x3) & n_man(x2) & n_group(x1))
exists e1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x3) & (x1 = x2) & n_man(x1))