55500
Charged particles can move at relativistic speeds nearing field propagation speeds , but , as Albert Einstein showed , this requires enormous field energies , which are not present in our everyday experiences with electricity , magnetism , matter , and time and space .
 person: Albert Einstein
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: Albert Einstein 
Answer:
 person: Albert Einstein