Ключевые слова: 11, against, barcelona, barcelona city hall, catalan, catalonia, catalunya, claim, crowd, day, demonstration, europe, european, flag, freedom, government, independence, independent, manifestation, march, national, nationalism, people, politics, protest, protesters, protesting, protests, referendum, retirement, secession, separation, separatism, september, spain, spanish, state, street, unionists, vote,