People look on to a parking lot full of motorcycles.
People are looking at motorcycles in the rain.
People could be looking at the motorcycles in any weather, not just rain.
exists e1 s1 x1 x2 x3 x4 x5.(r_on(e1) & to(e1,x2) & of(s1,x5) & n_motorcycle(x5) & Theme(s1,x4) & a_full(s1) & (x2 = x4) & n_lot(x2) & of(x2,x3) & n_parking(x3) & Actor(e1,x1) & v_look(e1) & n_people(x1))
exists e1 x1 x2 x3.(n_rain(x3) & at(e1,x2) & in(x2,x3) & n_motorcycle(x2) & Actor(e1,x1) & v_look(e1) & n_people(x1))