A group of people are walking around a crowded area with dirt on the ground.
a group of individuals taking a tour of a park
An area with dirt on the ground isn't necessarily a park.
exists e1 s1 x1 x2 x3 x4 x5.(n_ground(x5) & on(e1,x5) & with(e1,x4) & n_dirt(x4) & around(e1,x3) & n_area(x3) & a_crowded(s1) & Theme(s1,x3) & Actor(e1,x1) & v_walk(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & Theme(e1,x4) & Actor(e1,x3) & v_take(e1) & of(x4,x5) & n_park(x5) & n_tour(x4) & (x2 = x3) & n_individual(x2) & n_group(x1))