Paramedics are rescuing a man on a walkway.
Paramedics save a man's life.
Paramedics  rescuing a man on a walkway doesn't mean that Paramedics save a man's life.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_rescue(e1) & on(x2,x3) & n_walkway(x3) & n_man(x2) & n_paramedic(x1))
exists e1 x1 x2 x3.(n_thing(e1) & Theme(e1,x3) & Actor(e1,x1) & v_save(e1) & n_life(x3) & of(x3,x2) & n_man(x2) & n_paramedic(x1))