premise: Two girls are on a street sidewalk and one is sitting.
hypothesis: the street is empty
explanation_1: The street cannot be empty if there are girls on it.
explanation_2: If two girls are on a street sidewalk, then the street is not empty.
explanation_3: The street is not empty if there is at least one person or two girls there,
premise_logic: exists e1 p1 x1 x2.(Actor(e1,x2) & v_sit(e1) & n_thing(x2) & card_eq_1(x2) & exists x3 x4.(on(x1,x3) & n_sidewalk(x3) & of(x3,x4) & n_street(x4)) & n_girl(x1) & card_eq_2(x1))
hypothesis_logic: exists s1 x1.(n_street(x1) & Theme(s1,x1) & a_empty(s1))