People waiting at a light on bikes.
A bunch of friends are on a boat
There are no stoplights on a boat.
exists e1 x1 x2 x3 x4.(a_topic(x1) & at(e1,x3) & on(x3,x4) & n_bike(x4) & n_light(x3) & Actor(e1,x2) & v_wait(e1) & (x1 = x2) & n_people(x1))
exists p1 x1 x2.(exists x3.(on(x1,x3) & n_boat(x3)) & of(x1,x2) & n_friend(x2) & n_bunch(x1))