76462
Shortly after Giuseppe Piazzi 's discovery of Ceres , a group of astronomers ratified the name , proposed by the discoverer , and chose the sickle as a symbol of the planet .
 person: Giuseppe Piazzi; astronomical object: Ceres
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: Giuseppe Piazzi, Ceres 
Answer:
 person: Giuseppe Piazzi; astronomical object: Ceres