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In the first presidential elections in 1961 , Sylvanus Olympio became the first president , gaining 100 % of the vote in elections boycotted by the opposition .
 person: Sylvanus Olympio
Please list all entity words in the text that fit the category.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} 
Answer:
 person: Sylvanus Olympio