premise: They are sitting on the edge of a fountain
hypothesis: The persons are smoking cigarettes at the local bar.
explanation_1: The edge of a fountain is outside not in a local bar.
explanation_2: One either has to sit in a local bar or  on the edge of a fountain.
explanation_3: On the edge of a fountain and at the local bar are different premises for the persons under scanner.
premise_logic: exists e1 x1 x2.(n_edge(x2) & on(e1,x2) & of(x2,x1) & n_fountain(x1) & Actor(e1,x1) & v_sit(e1) & n_thing(x1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(n_bar(x3) & a_local(s1) & Theme(s1,x3) & n_person(x1) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_smoke(e1) & n_cigarette(x2))