Three men grilling on a front porch.
Three men are grilling pork.
Grilling does not imply grilling pork necessarily.
exists e1 s1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_porch(x3) & a_front(s1) & Theme(s1,x3) & Actor(e1,x2) & v_grill(e1) & (x1 = x2) & n_man(x1) & card_eq_3(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_grill(e1) & n_pork(x2) & n_man(x1) & card_eq_3(x1))