Beyond that , Puerto Rico is part of the Antilles , an archipelago that has always provided a constant flow of people , ideas and commerce , which in turn have nurtured a fluid but identifiable Caribbean culture on the mainland .
Caribbean /location/location/contains Puerto Rico
IN DT , NNP NNP VBZ NN IN DT NNPS , DT NN WDT VBZ RB VBN DT JJ NN IN NNS , NNS CC NN , WDT IN NN VBP VBN DT NN CC JJ JJ NN IN DT NN .
Caribbean
LOCATION
Puerto Rico
LOCATION
/location/location/contains