One person is standing and one person is sitting in a canoe on open water.
A father is watching his son canoe.
the two people may be anyone. not father and son.
exists e2 e1 s1 x1 x2 x3 x4.(in(e2,x3) & on(x3,x4) & n_water(x4) & a_open(s1) & Theme(s1,x4) & n_canoe(x3) & Actor(e2,x2) & v_sit(e2) & n_person(x2) & card_eq_1(x2) & Actor(e1,x1) & v_stand(e1) & n_person(x1) & card_eq_1(x1))
exists e1 x1 x2 x3.(Time(e1,x3) & n_canoe(x3) & Theme(e1,x2) & Actor(e1,x1) & v_watch(e1) & n_son(x2) & of(x2,x1) & n_male(x1) & n_father(x1))