Legend says Indoril Nerevar's family standard bore the moon and star, and Nerevar's armor and weapons bore this sign. Some say he bore a moon-and-star birthmark. Some say he has a magic ring marked with a moon-and-star. Others say he was born under a moon-and-star. In any case, I think the moon-and-star is the mark of the Nerevarine, and you do not have this mark. So you are not the Nerevarine.