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The style grew in popularity in the 1970 s with the approach of the United States Bicentennial and was introduced to high fashion by Ralph Lauren in his fall 1978 Western-themed collection .
 time: United States Bicentennial; person: Ralph Lauren
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: United States Bicentennial, Ralph Lauren 
Answer:
 time: United States Bicentennial; person: Ralph Lauren