6553
In December the two countries exchanged ratified border agreements and  Latvia  's President  Valdis Zatlers  said he expected to visit Moscow in the near future .
 employee of: Latvia, Valdis Zatlers
Given options, please tell me the relationships of all the listed entity pairs.Output format is "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} 
 Entity Pairs:  Latvia, Valdis Zatlers 
Answer:
 employee of: Latvia, Valdis Zatlers