375080
The firm has offices in Hartlepool , Stockton-on-Tees , Wynyard Park and Barnard Castle .
 Hartlepool, Stockton-on-Tees, Barnard Castle
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hartlepool, Stockton-on-Tees, Barnard Castle