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In May 2010 , simultaneously with the opening of the Shanghai – Nanjing Intercity High-Speed Railway ( whose tracks , in Zhenjiang area , closely parallel those of the " original " Shanghai-Nanjing railway ) , the new Zhenjiang CRH Railway Station was opened on the southern side of the tracks , opposite the " old " station , which is north of the tracks As of the early 2011 , the old station serves all the non - CRH trains ( i.e. , the conventional T , K , and slower trains ) as well as some of the CRH D-series trains ; the new CRH station serves the Shanghai – Nanjing Intercity High-Speed Railway trains ( i.e. , all G-series trains ) as well as most of the D-series trains .
 Zhenjiang, Zhenjiang
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Zhenjiang, Zhenjiang