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He first conquered some smaller English strongholds , like Oye castle , where he hanged part of the garrison , Sangatte and Balinghem .
 Oye castle, Sangatte, Balinghem
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Oye castle, Sangatte, Balinghem