84377
This was only the third asteroid to be imaged from a nearby distance , following 951 Gaspra and 243 Ida .
 astronomical object: 951 Gaspra; astronomical object: 243 Ida
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: 951 Gaspra, 243 Ida 
Answer:
 astronomical object: 951 Gaspra; astronomical object: 243 Ida