Tourists enjoying a hot air balloon type ride.
There is only one person in the balloon.
Tourists is plural so there is more than one person.
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_enjoy(e1) & n_ride(x3) & of(x3,x6) & n_type(x6) & of(x3,x5) & n_balloon(x5) & of(x3,x4) & n_air(x4) & a_hot(s1) & Theme(s1,x3) & (x1 = x2) & n_tourist(x1))
exists p1 x1 x3.(n_balloon(x3) & exists x2.((x1 = x2) & in(x2,x3) & n_person(x2) & card_eq_1(x2) & r_only(x2)))