171758
The is a rural railway line in Iwate Prefecture , Japan , operated by the East Japan Railway Company ( JR East ) .
 Iwate Prefecture, East Japan Railway Company, JR
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Iwate Prefecture, East Japan Railway Company, JR