7497
First film studios were founded in  St. Petersburg  in the first decade of the 20th century and since the 1920s  Lenfilm  has been the largest film studio based in St. Petersburg .
 city of headquarters: St. Petersburg, Lenfilm
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 city of headquarters: St. Petersburg, Lenfilm