25369
 Researchers for Greenpeace say bags of rice purchased in the southern city of Guangzhou were tested by an independent laboratory and found to contain genetically altered rice , which is illegal to sell on the open market in China . 
 location contains: China, Guangzhou
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  China, Guangzhou 
Answer:
 location contains: China, Guangzhou