A young couple crossing the street.
A couple is walking to the park
Just because a couple is crossing the street, does not mean they are walking to the park.
exists e1 s1 x1 x2 x3.(n_street(x3) & a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_cross(e1) & (x1 = x2) & n_couple(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_park(x2) & to(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_couple(x1))