About: http://webisa.webdatacommons.org/439735446

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Y, one of those 1997 articles is mine, still valid in general, and I have presented other papers since and continue to work on Penutian comparison, focusing on different aspects.
http://www.w3.org/ns/prov#wasQuotedFrom	languagehat.com