Two people are riding down a log flume in a theme park.
Two people are riding on a ride in a theme park.
Describing that proplr are riding down a log flume is a specific way of stating that they are on a ride.
exists e1 s1 x1 x2 x3 x4 x5.(in(e1,x4) & n_park(x4) & of(x4,x5) & n_theme(x5) & a_down(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_flume(x2) & of(x2,x3) & n_log(x3) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(on(e1,x2) & in(x2,x3) & n_park(x3) & of(x3,x4) & n_theme(x4) & n_ride(x2) & Actor(e1,x1) & v_ride(e1) & n_people(x1) & card_eq_2(x1))