Friends and family dance on a beach by their vehicles.
People are dancing on a beach.
Fiends and family dancing on a beach.
exists s1 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & on(x2,x4) & by(x4,x5) & n_vehicle(x5) & of(x5,x1) & n_thing(x1) & n_beach(x4) & n_dance(x2) & of(x2,x3) & n_family(x3) & subset_of(x1,s1) & n_friend(x1))
exists e1 x1 x2.(on(e1,x2) & n_beach(x2) & Actor(e1,x1) & v_dance(e1) & n_people(x1))