crowd of people walking in the street
And elderly couple is sitting on a bench in a park.
The people are either sitting or walking.
exists e1 x1 x2 x3 x4.(n_street(x4) & a_topic(x1) & of(x1,x2) & in(e1,x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_crowd(x1))
exists e1 s1 x1 x2 x3.(r_and(e1) & in(e1,x3) & n_park(x3) & on(e1,x2) & n_bench(x2) & Actor(e1,x1) & v_sit(e1) & n_couple(x1) & a_elderly(s1) & Theme(s1,x1))