I want to know the answer to the following question:
Portugal modernized its public cultural facilities during what two decades?
All the background I'm provided with is that "These include the Belém Cultural Centre in Lisbon, Serralves Foundation and the Casa da Música, both in Porto, as well as new public cultural facilities like municipal libraries and concert halls that were built or renovated in many municipalities across the country.". Is that enough to answer the question?
Answer: no