Two men sit on a sidewalk with their helmets in front of a Vespa scooter.
The two men are sitting.
So the two men can sit in front of their Vespa scooter, they must sit on the sidewalk.
exists e1 x1 x2 x3 x4 x5 x6.(with(e1,x3) & in(x3,x4) & of(x4,x5) & n_scooter(x5) & (x5 = x6) & ne_geo_vespa(x6) & n_front(x4) & n_helmet(x3) & of(x3,x1) & n_thing(x1) & on(e1,x2) & n_sidewalk(x2) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & card_eq_2(x1))
exists e1 x1.(n_man(x1) & card_eq_2(x1) & Actor(e1,x1) & v_sit(e1))