premise: A person floating on a river near a metropolitan area.
hypothesis: A dog floating on a river near a metropolitan area.
explanation_1: The person floating cannot be the dog floating, assuming they're a human person.
explanation_2: A dog is not a person.
explanation_3: A person cannot be a dog.
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & near(x3,x4) & n_area(x4) & a_metropolitan(s1) & Theme(s1,x4) & n_river(x3) & Actor(e1,x2) & v_float(e1) & (x1 = x2) & n_person(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & near(x3,x4) & n_area(x4) & a_metropolitan(s1) & Theme(s1,x4) & n_river(x3) & Actor(e1,x2) & v_float(e1) & (x1 = x2) & n_dog(x1))