premise: The two people are on the end of the dock with a boat behind them, and they are surrounded by water.
hypothesis: Two people jumping off a dock into the water.
explanation_1: The people can't be at the end of the dock in they're jumping into the water.
explanation_2: JUMPING OFF IS THE EVENTUAL ACTION WHICH IS CONTRADICTORY TO "ON THE END OF THE DOCK"
explanation_3: The people are either on the dock or jumping off.
premise_logic: exists e1 p1 x1 x2 x3 x4.(n_thing(x1) & n_thing(x4) & n_dock(x4) & n_end(x3) & n_people(x1) & card_eq_2(x1) & Actor(e1,x2) & n_water(x2) & Theme(e1,x1) & v_surround(e1) & exists x5.(on(x1,x3) & of(x3,x4) & with(x4,x5) & behind(x5,x4) & n_boat(x5)))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4.(n_water(x4) & a_topic(x1) & into(e1,x4) & a_off(s1) & Manner(e1,s1) & Theme(e1,x3) & Actor(e1,x2) & v_jump(e1) & n_dock(x3) & (x1 = x2) & n_people(x1) & card_eq_2(x1))