premise: A ribbon dancer is leaping through the air with her head back during a competition, green ribbon behind her.
hypothesis: a bear jumps
explanation_1: The ribbon dancer can't be a bear.
explanation_2: Sentence one talks about a girl. Sentence 2 is about a bear.
explanation_3: The subject is a female ribbon dance, not a bear.
premise_logic: exists e1 s1 s2 x1 x2 x3 x4 x5 x6.(n_female(x3) & n_female(x3) & n_head(x4) & of(x4,x3) & n_air(x3) & behind(e1,x3) & during(e1,x5) & rel(x5,x6) & n_ribbon(x6) & a_green(s2) & Theme(s2,x6) & n_competition(x5) & a_back(s1) & Manner(e1,s1) & with(e1,x4) & through(e1,x3) & Actor(e1,x1) & v_leap(e1) & n_dancer(x1) & of(x1,x2) & n_ribbon(x2))
hypothesis_logic: exists x1 x2.(a_topic(x1) & n_jump(x1) & of(x1,x2) & n_bear(x2))