690
Natrona County High School ( NCHS ) is a public secondary school ( grades 9 – 12 ) located in Casper , Wyoming , and serves Natrona County School District # 1 , which encompasses all of Natrona County , Wyoming .
 organization: Natrona; location: Casper; location: Wyoming; organization: Natrona; location: Natrona County; location: Wyoming
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: Natrona; location: Casper; location: Wyoming; organization: Natrona; location: Natrona County; location: Wyoming