2709
While the name 's usage can be traced to the early part of the 20th century , it was popularized in the 1960 s by the Oklahoma Department of Tourism and Recreation as one of six travel destination regions within the state .
 organization: Oklahoma Department of Tourism and Recreation
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: Oklahoma Department of Tourism and Recreation