One man is putting his hand on the back of another man and they are both on a boat.
One person is touching another person from behind.
A man is person, and touching means he is putting is hand on a person or something.
exists e1 p1 s1 x1 x2 x3 x4.(n_back(x4) & a_both(s1) & Manner(p1,s1) & exists x5.(on(x1,x5) & n_boat(x5)) & n_thing(x1) & on(e1,x4) & of(x4,x2) & n_man(x2) & -(x2 = x1) & n_man(x1) & n_man(x1) & Theme(e1,x3) & Actor(e1,x1) & v_put(e1) & n_hand(x3) & of(x3,x2) & n_male(x2) & card_eq_1(x1))
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_touch(e1) & from(x2,x3) & n_behind(x3) & n_person(x2) & -(x2 = x1) & n_person(x1) & n_person(x1) & card_eq_1(x1))