There are lots of difficulties here.

Is "sheep" singular or plural?
Is "fish" singular or plural?
Is "the government" singular or plural?
Is "England" singular or plural? (England is a country / England are 
bound to lose the match)
Is "English" singular or plural? (English is a language / The English 
are eccentric)

So even an exhaustive list of words is not going to give you the right 
answer all the time. You need to take the word in context, i.e. you need 
to parse the sentence grammatically. Here There Be Dragons.



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