A personal name or full name refers to the set of names by which an individual is known and that can be recited as a word-group, with the understanding that, taken together, they all relate to that one individual. In many cultures, the term is synonymous with the birth and legal names of the individual, seen below. In many cultures, individuals possess a variety of names, in others they are known by a single name; when a plurality of names occur, some are specific to the individual, distinguishing them from related individuals (e.g., John Adams and John Quincy Adams), while other names indicate the person's relationship to or membership in a family, clan, or other social structure (as for Charles Philip Arthur George and one of his namesakes), or even to unrelated others (e.g., as for Leon