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After he left the Army , Piantanida and his climbing partner , Walt Tomashoff , became the first people to climb a route on the north side of Auyantepui , the plateau in Venezuela from which Angel Falls drops from a cleft near the summit .
 Piantanida, Venezuela, Falls
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Piantanida, Venezuela, Falls