get a json file that a webpage is made of

I'm not familiar with web development but I believe this web page text content https://almath123.github.io/semstyle_examples/ is made of two JSON files mentioned in it (semstyle_results.json and semstyle_results.json) and the JSON files are completely present in ram (If this is the correct term for referring to it) because when I disconnect the internet I can still browse the page and see the text content.

I want to download semstyle_results.json file. Is that possible? how can I do that?

Technically if you visit a website you're "downloading" the content. Your browser sends a request for information and a server responds by sending you the information. You're viewing that information locally. Dynamic sites poll or make further requests as you browse to keep the data updated and relevant, but it's sent to you.

If you want to easily download any of the content from the website, a simple way is to open up the development tools (CTRL + SHFT + I on windows for Firefox and Chrome), go to a source file and click save as. The network tab shows you requests that were made which includes not just files such as json but also the details of the request.

Here is a screenshot locating one of the json files in a Chrome-based browser (Brave)