premise: A group of girls sit back to back.
hypothesis: A group of girls are sitting with their backs to each other.
explanation_1: Sentence one says a group of girls are sitting back to back Sentence two says the group of girls are sitting with their backs to each other, or back to back
premise_logic: exists e1 s1 x1 x2 x3.(Theme(e1,s1) & Theme(s1,x3) & a_back(s1) & r_back(e1) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_girl(x2) & n_group(x1))
hypothesis_logic: exists e1 x1 x2 x3.(all x4.(n_other(x4) -> to(e1,x4)) & with(e1,x3) & n_back(x3) & of(x3,x1) & n_thing(x1) & Actor(e1,x1) & v_sit(e1) & of(x1,x2) & n_girl(x2) & n_group(x1))
premise_sim: exists e1 s1 x1 x2 x3.(v_sit(e1) & r_back(e1) & of(x1,x2) & n_group(x1) & n_girl(x2) & a_back(s1) & Theme(s1,x3) & Theme(e1,s1) & Actor(e1,x1))
hypothesis_sim: exists e1 x1 x2 x3.(with(e1,x3) & v_sit(e1) & of(x3,x1) & of(x1,x2) & n_thing(x1) & n_group(x1) & n_girl(x2) & n_back(x3) & all x4.(to(e1,x4) | -n_other(x4)) & Actor(e1,x1))