A man on a motorbike is leading a horse that is giving someone a ride.
The man on the motocycle is leading a horse and rider.
A rider must be the person who the horse is giving a ride.
exists e2 e1 x1 x2 x3 x4 x5 x6.(Theme(e2,x3) & Actor(e2,x1) & v_lead(e2) & Recipient(e1,x6) & Theme(e1,x5) & Actor(e1,x4) & v_give(e1) & n_person(x6) & n_ride(x5) & (x3 = x4) & n_horse(x3) & on(x1,x2) & n_motorbike(x2) & n_man(x1))
exists e1 x1 x2 x3 x4 x5.(n_motocycle(x2) & n_man(x1) & Theme(e1,x3) & Actor(e1,x1) & v_lead(e1) & n_rider(x5) & n_horse(x4) & subset_of(x5,x3) & subset_of(x4,x3) & on(x1,x2))