Common vocabulary between pages

[RobGea]

OK got some code working in Python36. If you want i'll post it but its rough and ready and not thoroughly tested.
It uses Takahashi Transcription IVTFF Eva- 1.5
Some truncated sample output:
folio: f1v  contains 65 individual words. 
Matches ::  Folio
(20, 'f8r') 
(20, 'f89v1')

folio: f65r  contains 3 individual words
Matches  :: Folio
(2, 'f58v')
(2, 'f111v')

folio: f100r  contains 92 individual words
Matches  :: Folio
(26, 'f101r')
(25, 'f113r')
(25, 'f111r')