75325
The underlying scientific motivation was to determine the physical properties of the stars through the measurement of their distances and space motions , and thus to place theoretical studies of stellar structure and evolution , and studies of galactic structure and kinematics , on a more secure empirical basis .
 astronomical object: galactic
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: galactic 
Answer:
 astronomical object: galactic