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In 1862-63, Joseph Reddeford Walker led a well-known gold-hunting expedition of 34 men into the mountains of central Arizona, near what is now the city of Prescott. The company struck gold along the Hassayampa River and Lynx Creek, which was the impetus for subsequent white settlement in the area. The village of Walker, Arizona is named for him. He died at his home in Walnut Creek , California, and is buried in the Pioneer Cemetery in Martinez, California.
 place of death: Joseph Reddeford Walker, Walnut Creek
Given a phrase that describes the relationship between two words, extract the words and the lexical relationship between them. The output format should be "relation1: word1, word2; relation2: word3, word4". 
Option: place of death, place of birth, education degree, education institution 
Text: {0} 
Answer:
 place of death: Joseph Reddeford Walker, Walnut Creek