The lemmatization of the following sentence
- "Not finished! Not finished! A gem for our adopted daughter, Kiri, - - born of Grace's avatar, - - and whose conception was a complete mystery."*
has given a little bit confusing result
['not', 'finished', 'not', 'finish', 'a', 'gem', 'for', 'our', 'adopt', 'daughter', 'bear', 'of', 'avatar', 'and', 'whose', 'conception', 'be', 'a', 'complete', 'mystery']
The thing is that first word "finished" and "second" word "finished" were detected as different POS.
['PART', 'AUX', 'PART', 'VERB', 'DET', 'NOUN', 'ADP', 'PRON', 'VERB', 'NOUN', 'PROPN', 'VERB', 'ADP', 'PROPN', 'NOUN', 'CCONJ', 'DET', 'NOUN', 'AUX', 'DET', 'ADJ', 'NOUN']
First one was detected as an auxilary, and the second one was detected as a verb, as had been expected.
Adding third "Not finished!" gave the followinf result:
['not', 'finish', 'not', 'finish', 'not', 'finish', 'a', 'gem', 'for', 'our', 'adopt', 'daughter', 'bear', 'of', 'avatar', 'and', 'whose', 'conception', 'be', 'a', 'complete', 'mystery']
Removing one of them
['not', 'finish', 'a', 'gem', 'for', 'our', 'adopt', 'daughter', 'bear', 'of', 'avatar', 'and', 'whose', 'conception', 'be', 'a', 'complete', 'mystery']
Even four repetition let to get the expected result
['not', 'finish', 'not', 'finish', 'not', 'finish', 'not', 'finish', 'a', 'gem', 'for', 'our', 'adopt', 'daughter', 'bear', 'of', 'avatar', 'and', 'whose', 'conception', 'be', 'a', 'complete', 'mystery']
I find it difficult to find both a logical explanation and a workaround that will allow solving the problem not only with a specific example.