60743
Bulgaria is rich in mineral waters , with 225 mineral springs and a total discharge of 5000 l / s , mainly in the south-western and central parts of the country along the faults between the mountains .
 Bulgaria
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bulgaria