43369
Aircraft will circle around in orbit around sun for about a year and than they use earth gravitational for it to start its journey towards bennu .
 astronomical object: bennu
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: bennu 
Answer:
 astronomical object: bennu