1871
Operation Mobilisation  started in 1957 when Walter Borchard Dale Rhoton and  George Verwer  traveled to Mexico to distribute Christian literature and Gospels .
 top members employees: Operation Mobilisation, George Verwer
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:
 top members employees: Operation Mobilisation, George Verwer