2778
After burnouts , cars would be pushed back by crews ; this persisted until NHRA required reversing systems in 1980 .
 organization: NHRA
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: NHRA 
Answer:
 organization: NHRA