Like six hundred of the rotating light emoji go right here. There's an assumption that going from unstructured->structured data is easy-peasy, no need to hallucinate anything, it's basically fancy regex... but that's not the case! LLMs are more than happy to make things up, even when they don't need to.
aifaq.wtf
"How do you know about all this AI stuff?"
I just read tweets, buddy.