A couple stops on a bride to look at a pond.
A couple that was just married walking on a bridge.
Sentence 1 never says the couple is married nor were they waling on a bridge.
exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2 x4.(at(e2,x4) & n_pond(x4) & Actor(e2,x1) & v_look(e2)) & on(e1,x3) & n_bride(x3) & Actor(e1,x2) & v_stop(e1) & n_couple(x2) & n_couple(x1))
exists p1 x1 x2 x3.(a_topic(x1) & on(x1,x3) & n_bridge(x3) & exists s1 x4.((x2 = x4) & n_walking(x4) & a_married(s1) & Theme(s1,x4) & r_just(x4)) & (x1 = x2) & n_couple(x1))