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The Apollo spacecraft had three parts : a command module ( CM ) with a cabin for the three astronauts , the only part that returned to Earth ; a service module ( SM ) , which supported the command module with propulsion , electrical power , oxygen , and water ; and a lunar module ( LM ) that had two stages - a descent stage for landing on the Moon and an ascent stage to place the astronauts back into lunar orbit .
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Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
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