Two officers sit on horses in a urban setting.
two horses sit atop men
The two officers cannot sit on horses while the two horses sit atop men at the same time.
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_setting(x3) & a_urban(s1) & Theme(s1,x3) & on(e1,x2) & n_horse(x2) & Actor(e1,x1) & v_sit(e1) & n_officer(x1) & card_eq_2(x1))
exists e1 x1 x2.(atop(e1,x2) & n_man(x2) & Actor(e1,x1) & v_sit(e1) & n_horse(x1) & card_eq_2(x1))