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Louisiana  Republican Sen.  David Vitter  said many Louisianians are frustrated that Democrats who run Congress have been holding hearings while the uncapped well continues to sully Gulf Coast waters .
 state or provinces of residence: Louisiana, David Vitter
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: cities of residence, top members employees, members, alternate names, origin, state or provinces of residence, title of person, spouse, city of headquarters, NA, founded by, state or province of headquarters, employee of, countries of residence, country of birth, founded, subsidiaries, country of headquarters 
Text: {0} 
Answer:
 state or provinces of residence: Louisiana, David Vitter