A group of people hanging upside down on a yellow roller coaster.
The group is on a water ride.
A WATER RIDE IS NOT A ROLLER COASTER
exists e1 s1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & r_upside(e1) & on(e1,x4) & n_coaster(x4) & of(x4,x5) & n_roller(x5) & a_yellow(s1) & Theme(s1,x4) & r_down(e1) & Actor(e1,x3) & v_hang(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists p1 x1.(n_group(x1) & exists x2 x3.(on(x1,x2) & n_ride(x2) & of(x2,x3) & n_water(x3)))