A happy couple sitting together.
Two married people sit next to each other.
Not all couples are married.
exists e1 s1 s2 x1 x2.(a_topic(x1) & a_together(s2) & Manner(e1,s2) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_couple(x1) & a_happy(s1) & Theme(s1,x1))
exists e1 s1 x1.(all x2.(n_other(x2) -> to(e1,x2)) & r_next(e1) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & a_married(s1) & Theme(s1,x1) & card_eq_2(x1))