Entity extraction output is empty

Thank you very much for sharing your excellent work. I have some questions while using it:
1. Is your deepconf project primarily used for solving math problems?
2. I plan to apply your project to data annotation for entity extraction. My input is an extraction rule + a paragraph of text, and the output is the extracted key-value pairs, all in Chinese.
3. I'm finding the output isn't very good; it just outputs nothing.

The issue names no files, tests, or entry points. Start by reproducing the reported entity-extraction case with the stated Chinese rule and paragraph input, then inspect how the project handles that input and compare the empty output with the expected key-value pairs. The issue needs concrete inputs, expected output, and reproduction details before completion can be verified.

Written by the indexing model from the issue text.