13737
In April 2007 , astronomers announced that the Swedish-built Odin satellite had made the first detection of clouds of molecular oxygen in space , following observations in the constellation Ophiuchus .
 location: Ophiuchus
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: Ophiuchus 
Answer:
 location: Ophiuchus