61856
Initially classified as a D-type asteroid , it was later classed as C-type based upon a broad absorption feature below 4,000 " Å , most likely due to phyllosilicates on the surface .
 astronomical object: D-type asteroid
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: D-type asteroid 
Answer:
 astronomical object: D-type asteroid