premise: A person floating on a river near a metropolitan area.
hypothesis: A person on a river near a metropolitan area.
explanation_1: A person floating on a river is on a river.
explanation_2: The person near the metropolitan area was floating in river.
explanation_3: A person floating on a river requires a person to be on a river.
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 s1 x1 x2 x3.(a_topic(x1) & on(x1,x2) & near(x2,x3) & n_area(x3) & a_metropolitan(s1) & Theme(s1,x3) & n_river(x2) & n_person(x1))