<prompt> Translate the following text to EnglishMahakama zao kadhaa za mchezo wa mpira, ambazo zilitumiwa kwa ajili ya mikusanyiko fulani ya kijamii au ya kidini, zimegunduliwa kotekote Puerto Riko.  <response>: Several of their ceremonial ball courts, which were used for certain social or religious gatherings, have been discovered throughout Puerto Rico. 