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Drumlanrig 's accession to Parliament as the 1st Baron Kelhead precipitated a bitter dispute between him and Queensberry , and also between Queensberry and Rosebery , who became Prime Minister in 1894 .
 Drumlanrig, Queensberry, Queensberry, Rosebery
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Drumlanrig, Queensberry, Queensberry, Rosebery