4706
It was said by Alexander Myln that  Robert  owed his promotion to the affection which King  Robert III of Scotland  had for Cardeny's sister Mariota who had been the mistress of King Robert II Robert III's father .
 None
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:
 NA: Robert, Robert III of Scotland