Repair Text Data Automation Script

My existing Python 3 script is meant to automate a series of text-processing steps—cleaning, restructuring, and enrichment—yet it currently produces incorrect output. Your task is to dive into the code, trace the root cause, and return it to full working order while preserving the original logic whenever possible.

What you’ll hand back to me must include:
• The repaired .py file, tested and ready to run in a standard Python 3 environment
• Clear inline comments or a brief changelog explaining every adjustment and why it was needed
• Any extra setup notes if the fix introduces new libraries or environment variables

The script’s core purpose is “automation,” so please ensure that after your corrections it reliably ingests raw text, performs the intended transformations, and delivers the expected results without errors. If you see straightforward ways to boost performance or readability along the way, feel free to implement them—as long as the behaviour remains consistent.