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In the 1970 s , Brown & Williamson cross-bred a strain of tobacco to produce Y1 , a strain containing an unusually high nicotine content , nearly doubling from 3.2 - 3.5 % to 6.5 % .
 organization: Brown & Williamson
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:
 organization: Brown & Williamson