premise: An Indian man standing on the bank of a river.
hypothesis: He is fishing.
explanation_1: Just because a man stands on the bank of a river does not infer that he is fishing.
explanation_2: Standing on the bank of a river does not imply he is fishing.
explanation_3: The man could be sitting on the bank of a river doing absolutely nothing. One can't infer that he must be fishing from sentence 1 alone.
premise_logic: exists e1 s1 x1 x2 x3 x4.(n_bank(x3) & a_topic(x1) & on(e1,x3) & of(x3,x4) & n_river(x4) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_man(x1) & a_indian(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1.(n_male(x1) & exists x2.((x1 = x2) & n_fishing(x2)))
premise_sim: exists e1 s1 x1 x2 x3 x4.(v_stand(e1) & on(e1,x3) & of(x3,x4) & n_river(x4) & n_man(x1) & n_bank(x3) & a_topic(x1) & a_indian(s1) & Theme(s1,x1) & Actor(e1,x2) & (x1 = x2))
hypothesis_sim: exists x1.(n_male(x1) & exists x2.(n_fishing(x2) & (x1 = x2)))