26082
 For the family of Captain Cope , this would be one of the first pieces of evidence about his fate since his F-86F Sabre jet was reported missing on Sept. 16 , 1952 , after a fierce dogfight with North Korean MIG fighters over the Yalu River , which separates China from North Korea . 
 location contains: North Korea, Yalu 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: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 location contains: North Korea, Yalu River