60617
Petroleum exploration and extraction also takes place in the Oklahoma portion of the Ozarks , as well as in the east half of the Boston Mountains in Arkansas .
 location: Oklahoma; location: Ozarks; location: Boston Mountains; location: Arkansas
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Oklahoma, Ozarks, Boston Mountains, Arkansas 
Answer:
 location: Oklahoma; location: Ozarks; location: Boston Mountains; location: Arkansas