Little kids are on an amusement park ride.
Children are on a ride.
Little kids are children.
exists p1 s1 x1.(exists x2 x3 x4.(on(x1,x2) & n_ride(x2) & of(x2,x4) & n_park(x4) & of(x2,x3) & n_amusement(x3)) & n_kid(x1) & a_little(s1) & Theme(s1,x1))
exists p1 x1.(exists x2.(on(x1,x2) & n_ride(x2)) & n_child(x1))