1589
One customer was Sandro Pertini , Italy 's president from 1978 to 1985 , who used to puff away in a big leather chair upstairs -- and once got behind the counter to sell another customer a pipe .
 nationality: Sandro Pertini, Italy
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: ethnicity, place lived, geographic distribution, company industry, country of administrative divisions, administrative division of country, location contains, person of company, profession, ethnicity of people, company shareholder among major shareholders, sports team of location, religion, neighborhood of, company major shareholders, place of death, nationality, children, company founders, company founded place, country of capital, company advisors, sports team location of teams, place of birth 
Text: {0} 
 Entity Pairs:  Sandro Pertini, Italy 
Answer:
 nationality: Sandro Pertini, Italy