A man in a red jacket and helmet is riding a bike.
A man is dead in Nebraska.
One cannot be riding a bike and be dead.
exists e1 s1 x1 x2 x3 x4 x5.(Theme(e1,x5) & Actor(e1,x1) & v_ride(e1) & n_bike(x5) & in(x1,x2) & n_helmet(x4) & n_jacket(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_red(s1) & Theme(s1,x2) & n_man(x1))
exists s1 x1 x2.(ne_geo_nebraska(x2) & in(s1,x2) & Theme(s1,x1) & a_dead(s1) & n_man(x1))