(documentationrelativeEnglishLanguage "(relative ?O1 ?O2) means that ?O1 and ?O2 are relatives, whether through common ancestry (consanguinity), someone's marriage (affinity), or someone's adoption. This definition is intentionally broad, so as to capture a wide array of `familial' relations. The notion of who counts as `family' also varies between cultures, but that aspect of meaning is not addressed here.")