If I start the survey with URL like this one:

…/index.php?sid=XXXXX&lang=en&token=YYYYYYY&s1=sometext

How can I refer the value of the parameters got by the URL?
How can I use the value of s1 parameter ("sometext") in the above example in a question text or in a condition?

Thank You!!!

I didn't find the right solution from the Internet.
References
https://www.limesurvey.org/forum/can-i-do-this-with-limesurvey/74592-how-can-i-refer-to-an-url-parameter
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