This is an opinion of John. (Some one else uttered it.)
Plural and Singular Words.—Molasses is singular. The habit of giving it a plural construction is an error. Say “that molasses is souring,” not “them molasses are souring.”
Words like scissors, snuffers, tongs, trousers, etc., denoting articles which are paired or coupled, are plural, and take a plural verb. “The scissors are dull,” not “is dull.”
This is the birthplace of the President. (Not President’s.)
This is the private office of the Secretary. (Not Secretary’s.)
He is a friend of the Bank’s. (One of several friends.)
He is an enemy of mine. (One or more possessed by me.)
He is a brother of mine. (One or more possessed by me.)
He is a friend of hers. (One or more possessed by her.)
I cannot endure that rasping voice of Bridget’s. (One voice.)