 
 <prompt> Wetin be the meaning of the word wey show the relationship of the people wey survive? Based on the last question, write small tori wey get the answer. E fit be 1 - 20 sentences. Context: <response>: Stemmatics, stemmology or stemmatology na one serious approach to textual criticism. Karl Lachmann (1793–1851) bin greatly contribute to make dis method popular, even though e no invent am. The method carry im name from the word stemma. The Ancient Greek word στέμματα and its loanword for classical Latin stemmata fit mean "family trees". Dis specific meaning show the relationships of the surviving witnesses (the first known example of such a stemma, albeit with the name, dates from 1827). The family tree still fit be called cladogram. The method dey work based on the principle say "community of error implies community of origin." That be say, if two witnesses get plenty errors wey dem share, e fit be say dem come from one common intermediate source, wey dem dey call hyparchetype. Relations between the lost intermediates dey determined by the same process, wey go place all the existing manuscripts for one family tree or stemma codicum wey come from one single archetype. The process of constructing the stemma dey called recension, or the Latin recensio. 