KantaiBERTのデータセット
#Transformerによる自然言語処理
3章
https://github.com/PacktPublishing/Transformers-for-Natural-Language-Processing/blob/main/Chapter03/kant.txt
The Critique of Pure Reason
https://gutenberg.org/ebooks/4280
The Critique of Practical Reason
https://gutenberg.org/ebooks/5683
Fundamental Principles of the Metaphysic of Morals
https://gutenberg.org/ebooks/5682