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The All Arms Commando Course lasts for 8 weeks and is run by the Royal Marines at the Commando Training Centre Royal Marines ( CTCRM ) , Lympstone .
 Commando, Royal Marines, Commando, Marines, Lympstone
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Commando, Royal Marines, Commando, Marines, Lympstone