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Gregg Weaver , born January 9, 1961 in California , was part of San Diego's famed skate scene and one of skateboarding's early superstars (Weyland, 2002, p.44). During the resurgence of skateboarding in the early to mid 1970s, he was one of the most heavily photographed riders being a favorite subject of both Warren Bolster and Art Brewer (Bolster, 2004).
 place of birth: Gregg Weaver, California
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 birth: Gregg Weaver, California