<note xmlns="http://www.tei-c.org/ns/1.0" xml:id="ftn1" n="1" rend="footnote text"> Here, one could also use variants classified as older through the principles of lectio difficilior or lectio brevior. Some first Machine Learning based classifications suggest that this principle, at least for the artificial datasets mentioned below is a too low frequency phenomenon for directionality classification. </note> <note xmlns="http://www.tei-c.org/ns/1.0" xml:id="ftn2" n="2" rend="footnote text"> Boles & Clifford (1989) data yielded the same results on HDCCP LCM. </note>