Erotic romance novels are stories written about the development of a romantic relationship through sexual interaction. The sex is an inherent part of the story, character growth, and relationship development, and could not be removed without damaging the storyline.
No good erotic romance novels lack sex.
The text says sex CANNOT be removed without the storyline of erotic romance novels suffering; the absolute statement fooled the model.
( z1 lack :ARG0 ( z2 novel :polarity - :topic ( z3 romance :mod ( z4 erotic ) ) :ARG1-of ( z5 good ) ) :ARG1 ( z6 sex ) )