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Early life Walter Kissling was born to Walter Kissling Rickli and Adela Gam Secen in Limón , Costa Rica on April 25 , 1931 .
 Walter Kissling, Walter Kissling, Limón, Costa Rica
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Walter Kissling, Walter Kissling, Limón, Costa Rica