An man cooks on his grill at sunset.
A man is outside.
in a both sentence sunset and outside are different.
exists x1 x2 x3 x4.(a_topic(x1) & on(x1,x3) & at(x3,x4) & n_sunset(x4) & n_grill(x3) & of(x3,x1) & n_male(x1) & n_cook(x1) & of(x1,x2) & n_man(x2))
exists s1 x1.(Theme(s1,x1) & a_outside(s1) & n_man(x1))