premise: A man walking towards the open sea.
hypothesis: Man is swimming.
explanation_1: The man is walking not swimming
explanation_2: A man is either swimming or walking, not both at the same time.
explanation_3: The man can not be walking and swimming at the same time
premise_logic: exists e1 s1 x1 x2 x3.(n_sea(x3) & a_open(s1) & Theme(s1,x3) & a_topic(x1) & towards(e1,x3) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_man(x1))
hypothesis_logic: exists p1 x1.(exists x2.((x1 = x2) & n_swimming(x2)) & n_man(x1))