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It was Kakuei Tanaka , postwar Japan 's most powerful prime minister and a native of Niigata , who put the money held by the post office to use as a huge slush fund for the Liberal Democrats , said Kent Calder , a professor at the Johns Hopkins School of Advanced International Studies in Washington .
 location contains: Japan, Niigata
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Japan, Niigata 
Answer:
 location contains: Japan, Niigata