9200
One of  Dubai World  's biggest units  Istithmar World  spearheaded the holding company's acquisition of the Fontainebleau Miami Beach for about $ 750 million last year and the Mandarin Oriental New York for about $ 380 million in 2007 .
 subsidiaries: Dubai World, Istithmar World
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:
 subsidiaries: Dubai World, Istithmar World