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* השאלה נוספה בתאריך: 18-01-2021

		it cannot be used in isolation
		it is always on the right of the root and not on the left
		it affects the meaning of the vocalization (krak-oo has not the same meaning as krak)
		all of these

In what respect does the vocalization -oo in the communication system of monkeys behave like a suffix?