Page Comparison

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1. to filter out proper names:
   1. ignore all words that start with a UPPERCASE letter
2. to filter out abbreviations:
   1. ignore all words that are fully in UPPERCASE
   2. ignore all words that are shorter than 3 chars
   3. ignore all words that start with a digit
   4. ignore all qnames, e.g., rdfs:subClassOf
3. to filter out all IDMP-specific words - see the list below
4. all remaining words are checked against the list from https://pypi.org/project/pyspellchecker/
   1. the list contains mostly nouns in the singular form - for the plural form the simple subtraction of the last letter is performed.

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