This one interview trend is a “big red flag” for Mr. Wonderful.
result = extractor.classify_text(
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刚刚，苹果新iPhone来了，3999元用上最新A19，内存翻倍不涨价
neat, right? and this is just the tip of the iceberg. there are so many more use cases where these operators shine, and i encourage you to play around with them in the web app and see what you can come up with. you can also see the resulting automaton for each regex, and how the different components contribute to the state machine (msagl helped me a lot here).