5686
On 29 April 1969 , he was appointed the chief of staff , Eastern Command , by General Sam Manekshaw ( later field marshal ) .
 organization: Eastern Command; person: Sam Manekshaw
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: Eastern Command, Sam Manekshaw 
Answer:
 organization: Eastern Command; person: Sam Manekshaw