Classification is a vexing problem in folkloristics. Although broad genre classifications such as "ballad", "folktale", "legend", "proverb", and "riddle" are well established and widely accepted, these formal classifications are coarse and do little more than provide a first level sort on materials for collections that can easily include tens, if not hundreds, of thousands of records. Many large collections of folklore have been classified using systems designed for very specific tasks, usually related to early theories about the spread of folk narrative. Beyond the straightforward parsing of folk expressions into easily recognized formal genres (e.g. ballad, riddle, joke, legend, fairytale, etc.), the overarching emphasis of these schemas ...