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A group of 18 reformist MDP lawmakers , mostly Roh ' s confidants , demanded late Wednesday that the party be " constructively dissolved " to create a new grouping , MDP officials said .
 MDP, the party, a new grouping, MDP, A group of 18 reformist MDP lawmakers, mostly Roh ' s confidants, Roh, MDP officials
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: organization, person, geographical social political, vehicle, location, weapon, facility 
Text: {0} 
Answer:
 MDP, the party, a new grouping, MDP, A group of 18 reformist MDP lawmakers, mostly Roh ' s confidants, Roh, MDP officials