1823
And we turn our attention now to London where a memorial service was held today for the fifty - two victims of the bomb attacks in the city 's public transport systems back in July .
 geographical social political: London; date: today; cardinal: fifty - two; date: July
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
Answer:
 geographical social political: London; date: today; cardinal: fifty - two; date: July