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Fon Huffman died in his sleep in a nursing home in Sierra Vista , Arizona, on September 4, 2008, at the age of 95. He was survived by his daughters, Nancy (Steve) Ferguson of Sierra Vista, Arizona, and Gayle (Rusty) Pickus of Fairbanks, Alaska; and his grandchildren - James Pickus and Jeffrey Pickus.
 place of death: Fon Huffman, Sierra Vista
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
 Entity Pairs:  Fon Huffman, Sierra Vista 
Answer:
 place of death: Fon Huffman, Sierra Vista