Is it possible to list a set of necessary and sufficient conditions to fully and
adequately characterize the lexical item mother? Try to come up with a couple
of such sets of conditions and then explain why they are insufficient. (Hint:
think of all the current terms which contain the word mother, including birth
mother, surrogate mother, stepmother, biological mother, adoptive mother,
natural mother, foster mother, unwed mother, genetic mother, etc.)