premise: A quartet is performing inside.
hypothesis: Musicians are playing inside.
explanation_1: A quartet is a group of four people while the word musicians can imply two or more.  Performing can be different than playing.
premise_logic: exists e1 s1 x1.(a_inside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_perform(e1) & n_quartet(x1))
hypothesis_logic: exists e1 s1 x1.(ne_nam_musicians(x1) & a_inside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_play(e1))
premise_sim: exists e1 s1 x1.(v_perform(e1) & n_quartet(x1) & a_inside(s1) & Manner(e1,s1) & Actor(e1,x1))
hypothesis_sim: exists e1 s1 x1.(v_play(e1) & ne_nam_musicians(x1) & a_inside(s1) & Manner(e1,s1) & Actor(e1,x1))