85265
On Earth , physical and chemical differentiation processes led to a crustal density of approximately 2700 " kg / m compared to the 3400 " kg / m density of the compositionally different mantle just below , and the average density of the planet as a whole is 5515 " kg / m .
 astronomical object: Earth
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: Earth 
Answer:
 astronomical object: Earth