A couple walking down a city street holding hands.
The couple are engaged to be married.
the fact that the couple is holding hands does not imply that they are engaged to be married.
exists e2 e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & for(e1,e2) & Theme(e2,x5) & Actor(e2,x2) & v_hold(e2) & n_hand(x5) & a_down(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_walk(e1) & n_street(x3) & of(x3,x4) & n_city(x4) & (x1 = x2) & n_couple(x1))
exists e1 p1 x1.(n_couple(x1) & Topic(e1,p1) & exists e2.(Theme(e2,x1) & v_marry(e2)) & Theme(e1,x1) & v_engage(e1))