premise: A boat docked on a river.
hypothesis: The boat is a fishing boat.
explanation_1: A boat docked on a river is not necessarily a fishing boat.
explanation_2: Just because a boat docked on a river does not mean it is a fishing boat.
explanation_3: Not all boats are a fishing boat.
premise_logic: exists e1 x1 x2 x3.(a_topic(x1) & on(e1,x3) & n_river(x3) & Theme(e1,x2) & v_dock(e1) & (x1 = x2) & n_boat(x1))
hypothesis_logic: exists p1 x1.(n_boat(x1) & exists x2 x3.((x1 = x2) & n_boat(x2) & of(x2,x3) & n_fishing(x3)))