What is the classification of English countable nouns and uncountable nouns? Such as the title

What is the classification of English countable nouns and uncountable nouns? Such as the title

You can refer to the links above to classify nouns according to the definitions of countable nouns and uncountable nouns. However, you should pay attention to special situations in the process of application, such as:
In general, proper nouns have the meaning of "unique", so they usually have no plural form, that is, they are uncountable. However, the uniqueness of proper nouns is usually relative, and this uniqueness will be destroyed with the expansion of the scope. For example, in a small range, there may be only one Henry, but in a large range, there may be multiple Henry, So we sometimes see sentences like this:
There are five Henry in our school
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