Cross-category cascading select filtering for organization

It's work in Survey CTO but not work in ODK
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Welcome to the ODK forum, @Noyon! We're glad you're here. When you get a chance, please introduce yourself on this forum thread. I'd also encourage you to add a picture as your avatar because it helps build community!

The functions available in ODK are listed in the main documentation and in the XPath functions documentation, and item-present() doesn't appear to be a valid function.