A city street is being cleaned by a man in a green vehicle.
A trash man picks up garbage off the street.
Cleaning a street does not imply the man is a trash man.
exists e1 s1 x1 x2 x3 x4.(Actor(e1,x3) & in(x3,x4) & n_vehicle(x4) & a_green(s1) & Theme(s1,x4) & n_man(x3) & Theme(e1,x1) & v_clean(e1) & n_street(x1) & of(x1,x2) & n_city(x2))
exists e1 s1 x1 x2 x3 x4.(n_street(x4) & off(e1,x4) & a_up(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x1) & v_pick(e1) & n_garbage(x3) & n_man(x1) & of(x1,x2) & n_trash(x2))