That’s one option. But Sandwiches’ is valid too, as it ends in an s and is a proper noun, it’s not exclusive to plurals. AP style guide for example requires it (and got a lot of flack when 's was proposed as acceptable).
Plus sandwiches itself is a singular noun which is a plural word, so it’s s’ not s’s for most cases there.
What we really need to know is how to make possessive plurals of proper nouns that are plural but refer to a single thing.
Imagine a club called The Backstreets. Is it The Backstreetses’?
What about how to make plurals of proper nouns that are possessive? Like a restaurant called Your Grandparents’. Is it Your Grandparents’es? What about the possessive plural? AYour Grandparents’es’?
I think it may 100% depend on alcohol and/or THC intake, both of the person writing it and the person reading it. I believe those are the accepted rules as written in both the New York Writing Style Guide and the Chicago Writing Style Guide.
I believe it fits under the section titled As the mood strikes; grammar’s mishaps’s and bewilderment
That’s one option. But Sandwiches’ is valid too, as it ends in an s and is a proper noun, it’s not exclusive to plurals. AP style guide for example requires it (and got a lot of flack when 's was proposed as acceptable).
Plus sandwiches itself is a singular noun which is a plural word, so it’s s’ not s’s for most cases there.
Anyway, grammar is weird.
What we really need to know is how to make possessive plurals of proper nouns that are plural but refer to a single thing.
Imagine a club called The Backstreets. Is it The Backstreetses’?
What about how to make plurals of proper nouns that are possessive? Like a restaurant called Your Grandparents’. Is it Your Grandparents’es? What about the possessive plural? AYour Grandparents’es’?
I think it may 100% depend on alcohol and/or THC intake, both of the person writing it and the person reading it. I believe those are the accepted rules as written in both the New York Writing Style Guide and the Chicago Writing Style Guide.
I believe it fits under the section titled As the mood strikes; grammar’s mishaps’s and bewilderment