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By the end of 2019 , longest HSR network in the world had over of dedicated lines alone , making it the Beijing–Guangzhou–Shenzhen High-Speed Railway .
 Beijing–Guangzhou–Shenzhen High-Speed Railway
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Beijing–Guangzhou–Shenzhen High-Speed Railway