Tried copying the line "prognosis is reccurence" from rule r1c to everywhere it occured in the other rules etc. Then recompiled and tried again. Rule r8c now working properly. Cannot see why this happened. See below:
C.F. : TRY : r8c
C.F. : LOOKUP : (grade is '3') = -1
C.F. : IMPLIES : cf(0.35) @ -1 -> -0.35
C.F. : LOOKUP : (prognosis is reccurence) = 0.2
C.F. : CONFIRMS : 0.2 + -0.35 -> -0.1875
C.F. : UPDATE : (prognosis is reccurence) = -0.1875
C.F. : FIRED : r8c
Looked at the certainty factor example in Chapter 3 of T396 and it doesn't simply add certainty factors together.
Start testing KBS again!
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