An beautiful Asian-looking woman wearing a dress is holding a microphone singing as she holds a dark colored feather boa at her chest.
A woman sings into a microphone.
The woman holding a microphone singing also sings into a microphone.  It is a different way of saying the same thing and the rest of sentence 1 does not negate the statement: A woman sings into a microphone.
exists e1 e2 p1 s1 s2 x1 x2 x3 x4 x5 x8.(exists e3 s3 s4 x1 x6 x7.(at(e3,x8) & n_female(x1) & Theme(e3,x6) & Actor(e3,x1) & v_hold(e3) & n_boa(x6) & of(x6,x7) & n_feather(x7) & a_colored(s4) & Theme(s4,x6) & a_dark(s3) & Theme(s3,x6)) & n_chest(x8) & of(x8,x1) & n_female(x1) & as(e2,p1) & Theme(e2,x4) & Actor(e2,x1) & v_hold(e2) & n_singing(x4) & of(x4,x5) & n_microphone(x5) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_dress(x3) & (x1 = x2) & n_woman(x1) & a_asian-looking(s2) & Theme(s2,x1) & a_beautiful(s1) & Theme(s1,x1))
exists e1 x1 x2.(into(e1,x2) & n_microphone(x2) & Actor(e1,x1) & v_sing(e1) & n_woman(x1))