3081
The 1880s were boom times in Duluth ; the population was 30,000 in 1887 compared with 13,000 in 1883 .
 organization: Duluth
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Duluth