Two children are on a fairground ride.
children at home asleep
One cannot ride on fairground by being at home asleep.
exists p1 x1.(exists s1 x2.(on(x1,x2) & n_ride(x2) & a_fairground(s1) & Theme(s1,x2)) & n_child(x1) & card_eq_2(x1))
exists x1 x2 x3.(a_topic(x1) & at(x1,x2) & n_asleep(x2) & of(x2,x3) & n_home(x3) & n_child(x1))