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The phrase "are its role" is not correct in standard written English.
It may be used in contexts where a subject is being discussed in relation to its function or purpose, but it requires additional context to be grammatically correct.
Example: "The responsibilities of the committee are its role in the organization."
Alternatives: "constitutes its function" or "defines its purpose."
Exact(3)
Narco-cartels are not adversaries of global capitalism, nor even pastiches of it: they are its role models.
The main protective roles of GSH against oxidative stress are: its role as a cofactor of several detoxifying enzymes against oxidative stress, e.g. glutathione peroxidase (GPx), glutathione transferase (GST) and its role in regenerating the most important antioxidants, vitamins C and E back to their active forms [9], [10].
Among these are its role as a DNAse in genomic DNA fragmentation during apoptosis, the processing of endogenous siRNA and the detoxification of repeat elements [ 11- 13].
Similar(57)
However, the fundamental and better-characterized functions of HOTAIR are its roles as "guide" and "scaffold".
"That's its role in the body.
One is its role in cardiovascular disease.
What is its role in society?
So what precisely was its role in that mission?
What is its role in the health system?
The first is its role 20 years ago (see article).
But the one that's relevant to this story is its role as a messenger.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com