5620
Alexandra of Denmark ( Queen Alexandra widow of Edward VII of the United Kingdom )  Mary of Teck  ( Queen Mary widow of King  George V of the United Kingdom  ) and Elizabeth Bowes-Lyon ( Queen Elizabeth the Queen Mother widow of King George VI of the United Kingdom ) all followed this practice .
 spouse: Mary of Teck, George V of the United Kingdom
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:
 spouse: Mary of Teck, George V of the United Kingdom