premise: The young man is sitting on a couch smoking a cigarette.
hypothesis: A young man smoking a cigar
explanation_1: smoking a cigarette doesn't always mean cigar
explanation_2: Cigar is not the only kind of cigarette
explanation_3: You can not infer he is smoking a cigar.
premise_logic: exists e1 s1 x1.(n_man(x1) & a_young(s1) & Theme(s1,x1) & all x2.(n_cigarette(x2) -> exists x3 x4.(on(e1,x3) & for(x3,x2) & n_smoking(x3) & of(x3,x4) & n_couch(x4))) & Actor(e1,x1) & v_sit(e1))
hypothesis_logic: exists e1 s1 x1 x2 x3.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_smoke(e1) & n_cigar(x3) & (x1 = x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))