Generalize the topic from a feature

[ndc85430]

Have a mapping (i.e. a dictionary) of the type values to their description strings? Either that or replace the type values with those more descriptive strings. If what you're asking is how to generate that mapping automatically, I suspect that this falls under the realms of natural language processing (NLP). Perhaps NLP libraries include some categorisations of words like this, but I don't know.