premise: Musician in the middle of a large crowd.
hypothesis: The musician is by himself
explanation_1: He can't be in the middle of a large crowd and by himself at the same time.
premise_logic: exists s1 x1 x2 x3.(n_middle(x2) & a_topic(x1) & in(x1,x2) & of(x2,x3) & n_crowd(x3) & a_large(s1) & Theme(s1,x3) & n_musician(x1))
hypothesis_logic: exists p1 x1 x2.(n_male(x2) & n_musician(x1) & by(x1,x2))
premise_sim: exists s1 x1 x2 x3.(of(x2,x3) & n_musician(x1) & n_middle(x2) & n_crowd(x3) & in(x1,x2) & a_topic(x1) & a_large(s1) & Theme(s1,x3))
hypothesis_sim: exists x1 x2.(n_musician(x1) & n_male(x2) & by(x1,x2))