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In 1894 Hermann Emil Fischer outlined the concept of asymmetric induction ; in which he correctly ascribed selective the formation of - glucose by plants to be due to the influence of optically active substances within chlorophyll .
 person: Hermann Emil Fischer
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: Hermann Emil Fischer