 However, on such a proposal, it is difficult to avoid the prediction that “ducks are female” should also be a true generic—why can this generic not be made true by similarly restricting the domain to include only this subkind of ducks? Or conversely, consider “ducks don’t lay eggs”. Certainly one subkind of ducks—namely the male ducks—don’t lay eggs, but this does not seem to suffice to make the generic “ducks don’t lay eggs” true. Asher and Pelletier (2012) offer a development of the normalcy-based account intended to remedy these problems.