premise: One girl is playing a recorder and another girl is playing the guitar.
hypothesis: they are in a class
explanation_1: Playing a recorder and playing the guitar does not imply being in a class.
premise_logic: exists e2 e1 x1 x2 x3 x4.(n_guitar(x4) & Theme(e2,x4) & Actor(e2,x3) & v_play(e2) & n_girl(x3) & -(x3 = x1) & n_girl(x1) & n_girl(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_recorder(x2) & card_eq_1(x1))
hypothesis_logic: exists p1 x1.(n_thing(x1) & exists x2.(in(x1,x2) & n_class(x2)))
premise_sim: exists e2 e1 x1 x2 x3 x4.(v_play(e2) & v_play(e1) & n_recorder(x2) & n_guitar(x4) & n_girl(x3) & n_girl(x1) & card_eq_1(x1) & Theme(e2,x4) & Theme(e1,x2) & Actor(e2,x3) & Actor(e1,x1) & -(x3 = x1))
hypothesis_sim: exists x1.(n_thing(x1) & exists x2.(n_class(x2) & in(x1,x2)))