Three bicyclists race around a curve.
Two people are running on the beach.
There can be either two or three people
exists x1 x2 x3.(a_topic(x1) & around(x1,x3) & n_curve(x3) & n_race(x1) & of(x1,x2) & n_bicyclist(x2) & card_eq_3(x1))
exists e1 x1 x2.(n_beach(x2) & on(e1,x2) & Actor(e1,x1) & v_run(e1) & n_people(x1) & card_eq_2(x1))