A performance artist suspended upside down from red ribbons.
The artist is singing.
Just because a person is a performance artist doesn't mean they are capable of singing.
exists e1 s1 x1 x2 x3 x4.(from(e1,x4) & n_ribbon(x4) & a_red(s1) & Theme(s1,x4) & r_down(e1) & Theme(e1,x3) & Actor(e1,x1) & v_suspend(e1) & n_upside(x3) & n_artist(x1) & of(x1,x2) & n_performance(x2))
exists e1 x1.(n_artist(x1) & Actor(e1,x1) & v_sing(e1))