Use possessive version of variable in text

[jsladovi]

Is your feature request related to a problem? Please describe.
I'm trying to use the possessive version of a character's name in a text box and not sure how to achieve that best.

Describe the solution you'd like
Let's say our character_name variable can be two values, John and Chris. I want to use the variable in the following sentance: "This is {character_name}'s car." If I use John as the character name, everything will be fine, but for Chris it should be "This is Chris' car.", without the s after the apostrophe. Ideally, I would be able to write something along the lines of "This is {character_name:possessive} car." and it will fill it properly for both names.