59808
A second stimulus to understanding the processes of stellar nucleosynthesis occurred during the 20th century , when it was realized that the energy released from nuclear fusion reactions accounted for the longevity of the Sun as a source of heat and light .
 astronomical object: Sun
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: Sun 
Answer:
 astronomical object: Sun