About: http://webisa.webdatacommons.org/308434575

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	And no, I am not kidding .But, here is my feeble understanding so far: The two lung theory or expression or whatever was an analogy to try to illustrate that the Catholic and Orthodox Churches are both parts of the Body of Christ.
http://www.w3.org/ns/prov#wasQuotedFrom	orthodoxchristianity.net