Two people are on a motorcycle in the rain.
The people are in the rain.
There are two people in the rain riding a motorcycle.
exists p1 x1 x2.(n_rain(x2) & in(p1,x2) & exists x3.(on(x1,x3) & n_motorcycle(x3)) & n_people(x1) & card_eq_2(x1))
exists p1 x1 x2.(n_rain(x2) & n_people(x1) & in(x1,x2))