> For the complete documentation index, see [llms.txt](https://mind-expression-docs.gitbook.io/home/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://mind-expression-docs.gitbook.io/home/how-to-guides/build-query-freestyle-subjects.md).

# Build Query Freestyle Subjects

- [Case 1. Data Purchase](https://mind-expression-docs.gitbook.io/home/how-to-guides/build-query-freestyle-subjects/case-1.-data-purchase.md)
- [Case 2. Change Mobile Plan](https://mind-expression-docs.gitbook.io/home/how-to-guides/build-query-freestyle-subjects/case-2.-change-mobile-plan.md)