Water log amusement park ride with people in it at night.
A flume in use.
A water log being used as a ride is a flume currently being used.
exists x1 x2 x3 x4 x5 x6 x7.(a_topic(x1) & with(x1,x6) & at(x6,x7) & n_night(x7) & in(x6,x1) & n_thing(x1) & n_people(x6) & n_ride(x1) & of(x1,x5) & n_park(x5) & of(x1,x4) & n_amusement(x4) & of(x1,x3) & n_log(x3) & (x1 = x2) & ne_nam_water(x2))
exists x1 x2.(a_topic(x1) & in(x1,x2) & n_use(x2) & n_flume(x1))