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Examples of binary systems are Sirius , Procyon and Cygnus X-1 , the last of which probably consists of a star and a black hole .
 astronomical object: Sirius; astronomical object: Procyon; astronomical object: Cygnus X-1
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: Sirius, Procyon, Cygnus X-1 
Answer:
 astronomical object: Sirius; astronomical object: Procyon; astronomical object: Cygnus X-1