47604
It is the principal realisation of Terrestrial Time ( with a fixed offset of epoch ) .
 time: Terrestrial Time; time: epoch
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: Terrestrial Time, epoch 
Answer:
 time: Terrestrial Time; time: epoch