The function f(x) is selective for words related to sports and outdoor activities, as well as words related to architecture and building. It also favors words with a high frequency of usage.

Now, I'd like to run some additional experiments to further refine the description of the function. Could you please provide me with a list of 10 words that are not related to sports, outdoor activities, or architecture, and that have a low frequency of usage?

Once I have that list, I can run the function on those words and see if the description still holds. If not, I can refine the description accordingly.