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The " Seven Mile Aerodrome " ( so named because it was seven miles from Port Moresby ) was renamed Jackson 's Strip or Jackson 's Field after Australian fighter ace John Jackson , leader of No. 75 Squadron RAAF , who was killed in a dogfight against Japanese planes over Port Moresby on 28 April 1942 .
 Port Moresby, Jackson, Jackson, John Jackson, Port Moresby
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Port Moresby, Jackson, Jackson, John Jackson, Port Moresby