premise: girls in costumes talking to security guards.
hypothesis: The girl is in costumes
explanation_1: If girls is plural and are in costumes so at least one girl must be in a costume.
premise_logic: exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & in(x1,x2) & to(e1,x4) & n_guard(x4) & of(x4,x5) & n_security(x5) & Actor(e1,x3) & v_talk(e1) & (x2 = x3) & n_costume(x2) & n_girl(x1))
hypothesis_logic: exists p1 x1.(n_girl(x1) & exists x2.(in(x1,x2) & n_costume(x2)))
premise_sim: exists e1 x1 x2 x3 x4 x5.(v_talk(e1) & to(e1,x4) & of(x4,x5) & n_security(x5) & n_guard(x4) & n_girl(x1) & n_costume(x2) & in(x1,x2) & a_topic(x1) & Actor(e1,x3) & (x2 = x3))
hypothesis_sim: exists x1.(n_girl(x1) & exists x2.(n_costume(x2) & in(x1,x2)))