A pair of people in heavy winter jackets rides through the snow on a snowmobile.
The people are wearing winter clothes.
Winter jackets are winter clothes.
exists e1 s1 x1 x2 x3 x4 x5 x6.(n_snow(x5) & on(e1,x6) & n_snowmobile(x6) & through(e1,x5) & Actor(e1,x1) & v_ride(e1) & of(x1,x2) & in(x2,x3) & n_jacket(x3) & of(x3,x4) & n_winter(x4) & a_heavy(s1) & Theme(s1,x3) & n_people(x2) & n_pair(x1))
exists e1 x1 x2 x3.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_clothes(x2) & of(x2,x3) & n_winter(x3))