An older gentleman poses at the helm of a boat.
A person is on a boat.
Older gentleman is person.
exists s1 x1 x2 x3 x4.(n_helm(x3) & a_topic(x1) & at(x1,x3) & of(x3,x4) & n_boat(x4) & n_pose(x1) & of(x1,x2) & n_gentleman(x2) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists p1 x1.(exists x2.(on(x1,x2) & n_boat(x2)) & n_person(x1))