premise: The team swiftly moves their traditional boat down the river.
hypothesis: The boat has sunk
explanation_1: A boat cannot be sunk and moving simultaneously.
explanation_2: If the boat is sunk it is definitely not moving down the river swiftly.
explanation_3: A boat that swiftly moves cannot be one that has also sunk.
premise_logic: exists e1 s1 s2 x1 x2 x3.(n_river(x3) & n_boat(x2) & a_traditional(s1) & Theme(s1,x2) & of(x2,x1) & n_thing(x1) & n_team(x1) & a_swiftly(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_move(e1) & down(x2,x3))
hypothesis_logic: exists e1 x1.(n_boat(x1) & Actor(e1,x1) & v_sink(e1))
premise_sim: exists e1 s1 s2 x1 x2 x3.(v_move(e1) & of(x2,x1) & n_thing(x1) & n_team(x1) & n_river(x3) & n_boat(x2) & down(x2,x3) & a_traditional(s1) & a_swiftly(s2) & Theme(s1,x2) & Theme(e1,x2) & Manner(e1,s2) & Actor(e1,x1))
hypothesis_sim: exists e1 x1.(v_sink(e1) & n_boat(x1) & Actor(e1,x1))