We rely on different user intents. Search for "PISA engine" or "PISA search" and you will find this tool and not the city. Being found by the keyword `PISA` on Google is not necessarily our main goal.
We are not selling anything, the community is just building a product for IR research. We are willing to gain interest from skilled people in the end.
I don't think it really matters if there are `news` about the city, we are not targeting the news anyway.
Also, think about `Windows` or `Go`, there is no way you get confused once these words are in the right context.
Thanks for pointing out! This is a blog post for people that know already a bit about the theory and are interested in a possible implementation. But I see your point and will add it.