198781
This is a service which follows a mixture of the 311 and 313 routes between Walsall and Dudley and runs to an hourly frequency , combined with the 311 to give a half hourly frequency .
 Walsall, Dudley
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Walsall, Dudley