premise: Three sailboats with white sails are seen on a riverbank.
hypothesis: The boats are on the water.
explanation_1: Three boats are on a riverbank, and they have white sails.
explanation_2: Sailboats are boats.
explanation_3: Three sailboats are boats, and on a riverbank is a rephrasing of on the water.
premise_logic: exists e1 s1 x1 x2 x3.(on(e1,x3) & n_riverbank(x3) & Theme(e1,x1) & v_see(e1) & with(x1,x2) & n_sail(x2) & a_white(s1) & Theme(s1,x2) & n_sailboat(x1) & card_eq_3(x1))
hypothesis_logic: exists p1 x1 x2.(n_water(x2) & n_boat(x1) & on(x1,x2))
premise_sim: exists e1 s1 x1 x2 x3.(with(x1,x2) & v_see(e1) & on(e1,x3) & n_sailboat(x1) & n_sail(x2) & n_riverbank(x3) & card_eq_3(x1) & a_white(s1) & Theme(s1,x2) & Theme(e1,x1))
hypothesis_sim: exists x1 x2.(on(x1,x2) & n_water(x2) & n_boat(x1))