A male musician performs on stage with a band.
A woman singing alone
A male cannot be considered a woman. If a person is on stage with a band, then the person can't be alone.
exists e1 s1 x1 x2 x3.(on(e1,x2) & with(x2,x3) & n_band(x3) & n_stage(x2) & Actor(e1,x1) & v_perform(e1) & n_musician(x1) & a_male(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(a_topic(x1) & a_alone(s1) & Manner(e1,s1) & Actor(e1,x2) & v_sing(e1) & (x1 = x2) & n_woman(x1))