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The city 's highest density is found at and around the neighbourhood of la Sagrada Família where four of the city 's most densely populated neighbourhoods are located side by side , all with a population density above 50,000 inhabitants per square kilometre .
 location: la; location: Sagrada Família
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: la; location: Sagrada Família