3452
( In April a Trans-Missouri Irrigation Conference not affiliated with the ongoing organization had been held in Denver Colorado at the call of Secretary of the  Interior   Franklin Knight Lane  who had issued a broad invitation to all persons interested in irrigation with the meetings open to all . ) .
 employee of: Interior, Franklin Knight Lane
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: Interior, Franklin Knight Lane