3967
One of  Iowa  's own senators  Tom Harkin  sought the Democratic nomination that year causing his rivals to cede the state to him and focus on New Hampshire .
 employee of: Iowa, Tom Harkin
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: Iowa, Tom Harkin