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The Kingdom of  Prussia  was an absolute monarchy until the Revolutions of 1848 in the German states after which Prussia became a constitutional monarchy and  Adolf Heinrich von Arnim-Boitzenburg  was elected as Prussia's first prime minister .
 employee of: Prussia, Adolf Heinrich von Arnim-Boitzenburg
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:
 employee of: Prussia, Adolf Heinrich von Arnim-Boitzenburg