premise: Three sailboats with white sails are seen on a riverbank.
hypothesis: The boats  are sailing on the ocean.
explanation_1: The sailboats cannot be sailing along the riverbank and on the ocean.
explanation_2: An ocean is an open area which is different from a riverbank.
explanation_3: The sailboats can't be seen on an overbank if they're sailing the ocean.
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 e1 x1 x2.(n_ocean(x2) & n_boat(x1) & on(e1,x2) & Actor(e1,x1) & v_sail(e1))
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 e1 x1 x2.(v_sail(e1) & on(e1,x2) & n_ocean(x2) & n_boat(x1) & Actor(e1,x1))