Bacteria are classified as being either Gram-positive or Gram-negative based in differences in the structure of their peptidoglycan https://biologydictionary.net/cell/ wall. https://biologydictionary.net/peptidoglycan/ What is the grammatical form and function of "as" in"as being either.."? Bacteria are classified as either gram positive... I am really confused about "being" in the given context as if I remove it , the sentence still makes sense to me.
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