54073
In finance , an " option " is a contract which gives the " buyer " ( the owner ) the right , but not the obligation , to buy or sell an underlying asset or instrument at a specified strike price on or before a specified date .
 time: date
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: date 
Answer:
 time: date