1528
Meanwhile an  Israel Defense Forces  spokeswoman told Xinhua that the army detected six rockets were launched from Gaza at  Israel  and the security forces were still checking the exact location that the rockets had landed .
 country of headquarters: Israel Defense Forces, Israel
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:
 country of headquarters: Israel Defense Forces, Israel