1551
It quotes Halley as saying that before the aurora of 1716 , no such phenomenon had been recorded for more than 80 years , and none of any consequence since 1574 .
 person: Halley
Please list all entity words in the text that fit the category.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} 
Answer:
 person: Halley