6722
 Mr. Rivero , in the interview , said he was in communication with '' some key persons in Venezuela , '' including officials at the energy ministry and at the presidential palace in Caracas . 
 country capital: Venezuela, Caracas
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: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
Answer:
 country capital: Venezuela, Caracas