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Political writings His blog , named by the Washington Posts " The Fix " blog by Chris Cillizza as one of the best about state political blogs in the nation , is particularly critical of Democrats , such as President Barack Obama , Senator Mary Landrieu , her brother , former Lieutenant Governor and now mayor of New Orleans Mitch Landrieu , and former Representative Charles Melancon , the only Democrat in Louisiana 's seven-member U.S. House of Representatives delegation who unsuccessfully opposed U.s. Senator David Vitter in the 2010 election .
 person: Chris Cillizza; organization: Democrats; person: Barack Obama; person: Mary Landrieu; location: New Orleans Mitch Landrieu; person: Charles Melancon; organization: Louisiana; person: David Vitter
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Chris Cillizza, Democrats, Barack Obama, Mary Landrieu, New Orleans Mitch Landrieu, Charles Melancon, Louisiana, David Vitter 
Answer:
 person: Chris Cillizza; organization: Democrats; person: Barack Obama; person: Mary Landrieu; location: New Orleans Mitch Landrieu; person: Charles Melancon; organization: Louisiana; person: David Vitter