174036
Aircraft are regularly dispatched to forward airfield s in Hokkaidō , and in wintertime , conduct patrols of drift ice in the Sea of Okhotsk .
 Hokkaidō
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Hokkaidō