17138
 David Bradford , an influential tax economist who devised an innovative way to change the income-tax system to encourage people to save and invest more , died on Tuesday in Philadelphia . 
 place of death: David Bradford, Philadelphia
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: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 place of death: David Bradford, Philadelphia