Using NLP to analyze the company from the 10-k document

I would like to analyze the 10-ks files of companies (ex: Amazon's 10-ks file) and use NLP to classify the company as positive or negative or litigious etc., You can find the document here (https://www.sec.gov/ix?doc=/Archives/edgar/data/1018724/000101872421000028/amzn-20210930.htm) the reference for the project is (https://towardsdatascience.com/nlp-in-the-stock-market-8760d062eb92)