> I am deriving the second definition from the first. That doesn't make any sense. The first definition is a parent-child tree relationship. The second defini

> I am deriving the second definition from the first. That doesn't make any sense. The first definition is a parent-child tree relationship. The second definition is a way to characterize the social atmosphere of a given span of twenty-some years. They are structurally different definitions that are not reconcilable.