https://ell.stackexchange.com/questions/6295/when-a-word-ends-in-s-or-x-do-you-add-s-or-just-an
29 1) Alex's house 2) Alex' house When the noun ends with the letter 's' or 'x', do I need to put 's' after an apostrophe or not? I remember I read some rules related to this in my