Why would it be?
What is "lexical variability"?
The aim of PoS tagging is to assign PoS tags to words within the context of the sentence. I don't see any "suppression of the lexical variability" here.
What is "lexical variability"?
The aim of PoS tagging is to assign PoS tags to words within the context of the sentence. I don't see any "suppression of the lexical variability" here.
[ Sorry, but I cannot explain more if I don't understand what you don't understand in the first sentence. ]