A couple walks down a busy sidewalk holding hands.
They are on a romantic date.
A couple holding hands isn't necessarily on a romantic date.
exists e2 e1 s1 s2 x1 x2 x3.(for(e1,e2) & Theme(e2,x3) & Actor(e2,x1) & v_hold(e2) & n_hand(x3) & a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_walk(e1) & n_sidewalk(x2) & a_busy(s1) & Theme(s1,x2) & n_couple(x1))
exists p1 x1.(n_thing(x1) & exists s1 x2.(on(x1,x2) & n_date(x2) & a_romantic(s1) & Theme(s1,x2)))