Sentiment Analysis 
------------------
flipped token 3 a
flipped token 7 contemporary
flipped token 4 clarity
flipped token 1 observation
simple combined record: {'num_flips': 4, 'has_changed': True}
[['[CLS]', 'observation', 'make', 'a', 'clarity', 'about', 'these', 'contemporary', 'historical', 'figures', '?', '[SEP]']]

flipped token 7 contemporary
flipped token 4 clarity
flipped token 1 observation
baseline record: {'num_flips': 3, 'has_changed': True}
[['[CLS]', 'observation', 'make', 'a', 'clarity', 'about', 'these', 'contemporary', 'historical', 'figures', '?', '[SEP]']]