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In addition to the area 's foliage and rolling hills , it has more lakes than any other geographical area of Oklahoma , as well as more than half of the state 's registered state parks .
 location: Oklahoma
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:
 location: Oklahoma