The Hawaiian singer belts out a tune.
The singer is a woman
the singer is not necessarily a woman.
exists s1 x1 x2 x3.(n_belt(x1) & of(x1,x2) & n_singer(x2) & a_hawaiian(s1) & Theme(s1,x1) & a_topic(x1) & out(x1,x3) & n_tune(x3))
exists p1 x1.(n_singer(x1) & exists x2.((x1 = x2) & n_woman(x2)))