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After serving at sea during the Korean War he became a naval aviator , and graduated from the U.S. Naval Test Pilot School ( Class 23 ) , setting several world time-to-climb records as a test pilot .
 event: Korean War; organization: U.S. Naval Test Pilot School
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 event: Korean War; organization: U.S. Naval Test Pilot School