I feel like when I load my files via a SimpleDirectoryReader, that the bot im making isnt taking ahold of the infomation well. I'm currently moving over from a purely openai based system to a llama-index/langchain openai system, because i need to access a readthedocs wiki (which im currently doing via local files). The wiki explains how to create various formats of json for a data driven system called powers. but when i ask this new system to create a specific power, it creates a bunch of fields and names that dont exist on the wiki. i didnt have this issue on my old system, despite it having the same settings afaik. could anyone help me with why its sort of hallucinating these made up fields?