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The name " knapsack problem " dates back to the early works of mathematician Tobias Dantzig ( 1884&ndash ; 1956 ) , and refers to the commonplace problem of packing the most valuable or useful items without overloading the luggage .
 person: Tobias Dantzig
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: Tobias Dantzig