A woman sings to a crowd of people.
The singing woman is off key.
The fact that a woman is singing doesn't imply she is off key.
exists e1 x1 x2 x3.(to(e1,x2) & of(x2,x3) & n_people(x3) & n_crowd(x2) & Actor(e1,x1) & v_sing(e1) & n_woman(x1))
exists s1 s2 s3 x1.(n_woman(x1) & a_singing(s1) & Theme(s1,x1) & a_off(s3) & Manner(s2,s3) & Theme(s2,x1) & a_key(s2))