33946
Before entering the planetary region ( epoch 1950 ) , C/2007 Q3 had a calculated barycentric orbital period of ~ 6.4 million years with an apoapsis ( aphelion ) distance of about 69,000 AU ( 1.09 light-year s ) .
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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:
 None