53012
In 1970 , BECs were proposed by Emmanuel David Tannenbaum for anti-stealth technology .
 person: Emmanuel David Tannenbaum
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: Emmanuel David Tannenbaum 
Answer:
 person: Emmanuel David Tannenbaum