Three men are riding horses in the rodeo with spectators watching.
The men are riding horses in an arena.
riding horses in the rodeo can also be said as  riding horses in an arena.
exists e1 e2 x1 x2 x3 x4.(n_rodeo(x3) & Actor(e2,x4) & v_watch(e2) & with(e1,x4) & n_spectator(x4) & in(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2) & n_man(x1) & card_eq_3(x1))
exists e1 x1 x2 x3.(n_man(x1) & in(e1,x3) & n_arena(x3) & Theme(e1,x2) & Actor(e1,x1) & v_ride(e1) & n_horse(x2))