3676
The challenge proved addictive , and he has been with Christo and his spouse , Jeanne-Claude , ever since , first as a consultant for '' Wrapped Reichstag '' in Berlin -LRB- 10 miles of blue rope was used to wrap the building in silver fabric -RRB- , next as the design engineer in 1996 for the as-yet-unrealized '' Over the River '' installation on 40 miles of the Arkansas River in Colorado .
 location contains: Colorado, Arkansas River
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: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
Answer:
 location contains: Colorado, Arkansas River