You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Warsaw

Context:
The basic unit of territorial division in Poland is a commune (gmina). A city is also a commune – but with the city charter. Both cities and communes are governed by a mayor – but in the communes the mayor is vogt (wójt in Polish), however in the cities – burmistrz. Some bigger cities obtain the entitlements, i.e. tasks and privileges, which are possessed by the units of the second level of the territorial division – counties or powiats. An example of such entitlement is a car registration: a gmina cannot register cars, this is a powiat's task (i.e. a registration number depends on what powiat a car had been registered, not gmina). In this case we say about city county or powiat grodzki. Such cities are for example Lublin, Kraków, Gdańsk, Poznań. In Warsaw, its districts additionally have some of powiat's entitlements – like already mentioned car registration. For example, the district Wola has its own evidence and the district Ursynów – its own (and the cars from Wola have another type of registration number than these from Ursynów). But for instance the districts in Kraków do not have entitlements of powiat, so the registration numbers in Kraków are of the same type for all districts.

Question:
What is the basic unit of territorial division in Poland?

a commune