1556
He previously served as  President  from 1986 to 1990 and received the Nobel Peace Prize in 1987 for  his  efforts to end civil wars then raging in several other Central American countries .
 title of person: President, his
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:
 title of person: President, his