Two men are together; one appears to entertain the other with his guitar.
A musician and his manager are seen in the street.
Just because a man entertains another with a guitar does not mean that these people are a musician or a manager.
exists e1 p1 s1 x1 x2 x3 x4.(n_guitar(x4) & of(x4,x3) & n_male(x3) & n_other(x3) & Topic(e1,p1) & Actor(e1,x2) & v_appear(e1) & exists e2.(with(e2,x4) & Theme(e2,x3) & Actor(e2,x2) & v_entertain(e2)) & n_thing(x2) & card_eq_1(x2) & Theme(s1,x1) & a_together(s1) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(n_street(x4) & in(e1,x4) & Theme(e1,x1) & v_see(e1) & subset_of(x3,x1) & n_manager(x3) & of(x3,x2) & n_male(x2) & subset_of(x2,x1) & n_musician(x2))