two people eating with an onlooking greyhound dog.
a happy couple eats while a dog watches
Two people not always are happy couple
exists e2 e1 x1 x2 x3 x4.(a_topic(x1) & with(e1,x3) & n_dog(x3) & of(x3,x4) & n_greyhound(x4) & Actor(e2,x3) & v_onlook(e2) & Actor(e1,x2) & v_eat(e1) & (x1 = x2) & n_people(x1) & card_eq_2(x1))
(x)