premise: Person fishing in river.
hypothesis: The man is shopping at the mall
explanation_1: one cannot be fishing and shopping simultaneously
explanation_2: Rivers are not in malls. Fishing and shopping are not the same.
explanation_3: A person cannot be fishing and shopping the same time.
premise_logic: exists x1 x2 x3.(a_topic(x1) & in(x1,x3) & n_river(x3) & n_fishing(x1) & (x1 = x2) & ne_nam_person(x2))
hypothesis_logic: exists e1 x1 x2.(n_mall(x2) & n_man(x1) & at(e1,x2) & Actor(e1,x1) & v_shop(e1))
premise_sim: exists x1 x2 x3.(ne_nam_person(x2) & n_river(x3) & n_fishing(x1) & in(x1,x3) & a_topic(x1) & (x1 = x2))
hypothesis_sim: exists e1 x1 x2.(v_shop(e1) & n_man(x1) & n_mall(x2) & at(e1,x2) & Actor(e1,x1))