69875
The red supergiant N6946 - BH1 in NGC 6946 underwent a modest outburst in March 2009 , before fading from view .
 astronomical object: N6946 - BH1; astronomical object: NGC 6946
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: N6946 - BH1, NGC 6946 
Answer:
 astronomical object: N6946 - BH1; astronomical object: NGC 6946