63399
Red dwarfs are by far the most common type of star in the Milky Way , at least in the neighborhood of the Sun , but because of their low luminosity , individual red dwarfs cannot be easily observed .
 astronomical object: Milky Way; astronomical object: Sun
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: Milky Way, Sun 
Answer:
 astronomical object: Milky Way; astronomical object: Sun