This is the 10088th most frequent Polish word.
białostockim
The word "białostockim" is the locative or instrumental form of "białostocki," meaning "of or relating to Białystok," a city in Poland.
In this sentence, 'białostockim' is used as an adjective describing the region, specifying its association with the city of Białystok.
Mieszkam w białostockim regionie.
I live in the Białystok region.
Here, 'białostockim' describes 'folklorze' (folklore), connecting it to the cultural heritage of Białystok.
Piszę pracę o białostockim folklorze.
I am writing a paper on Białystok folklore.
In this case, 'białostockim' modifies 'ratuszem' (town hall), referring to a specific architectural element associated with Białystok.