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PNG is the abbreviation of the name and during the 1970s , PNG was a powerhouse high school football team , winning the Texas Class 4A ( the largest ) championship at Texas Stadium in Irving in December 1975 .
 None
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:  
Answer:
 None