Well, that diagram clears it all up............not.
Thanks for posting Cedars, it just shows that they cannot make a decent case for the doctrine however they try.
The problem I have found with discussing this with Elders and long-time JW's is that it is so unclear that in the end the mind-controlled JW says "Well , I believe it because the FDS says it is so, the evidence is good enough for me".
The fact that they are relying on blind faith in men and not "testing the inspired expression" bothers them not one bit.