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In 2014 , Prime minister Lee Hsien Loong and Yaacob Ibrahim , the Minister for Communications and Information attended the event as the Guest of Honor and gave a speech at the conference .
 person: Lee Hsien Loong; person: Yaacob Ibrahim
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: Lee Hsien Loong, Yaacob Ibrahim 
Answer:
 person: Lee Hsien Loong; person: Yaacob Ibrahim