A couple smiling while at a function at a restaurant, with lights in the distance.
The couple are sitting down.
Just because a couple is at function in a restaurant it does not mean they are sitting down.
exists e1 x1 x2 x3 x4 x5 x6.(n_distance(x6) & a_topic(x1) & with(e1,x5) & in(x5,x6) & n_light(x5) & at(e1,x3) & at(x3,x4) & n_restaurant(x4) & n_function(x3) & r_while(e1) & Actor(e1,x2) & v_smile(e1) & (x1 = x2) & n_couple(x1))
exists e1 s1 x1.(n_couple(x1) & a_down(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1))