1045
Instead the league added just one franchise for 2010 the Omaha Nighthawks who spent 2010 at Rosenblatt Stadium before moving downtown to  TD Ameritrade  Park  Omaha  for 2011 .
 city of headquarters: TD Ameritrade, Omaha
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: TD Ameritrade, Omaha