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 Senior officials say Pakistan has been helpful in tracking down parts of the Khan network , but its reluctance to join the interception program is an example , they say , of President Pervez Musharraf 's continued political sensitivities about appearing to cooperate too closely with President Bush . 
 Pervez Musharraf, Pakistan
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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:
 Pervez Musharraf, Pakistan