premise: Several men on stage having a discussion.
hypothesis: They are men on stage.
explanation_1: "They are men" can only refer to the several men already mentioned; that they are on stage is tautological.
explanation_2: Because the men are having a discussion on stage, they are located on stage.
explanation_3: Several men on stage is inferred as  men on stage.
premise_logic: exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x4) & Actor(e1,x3) & v_have(e1) & n_discussion(x4) & (x1 = x3) & on(x1,x2) & n_stage(x2) & n_man(x1) & a_several(s1) & Theme(s1,x1))
hypothesis_logic: exists p1 x1.(on(p1,x1) & n_stage(x1) & exists x2.((x1 = x2) & n_man(x2)) & n_thing(x1))