A man sings on stage with a guitar.
A man talks to his wife.
The man either talks or sings.
exists e1 x1 x2 x3.(on(e1,x2) & with(x2,x3) & n_guitar(x3) & n_stage(x2) & Actor(e1,x1) & v_sing(e1) & n_man(x1))
exists x1 x2 x3.(a_topic(x1) & to(x1,x3) & n_wife(x3) & of(x3,x1) & n_male(x1) & n_talk(x1) & of(x1,x2) & n_man(x2))