29993
Not long after we had arrived in Buenos Aires , we crossed one of the bridges connecting the Puerto Madero district to the rest of the enormous eastward-spreading city and began to stroll along the quay .
 location contains: Buenos Aires, Puerto Madero; neighborhood of: Puerto Madero, Buenos Aires
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:  Buenos Aires, Puerto Madero; Puerto Madero, Buenos Aires 
Answer:
 location contains: Buenos Aires, Puerto Madero; neighborhood of: Puerto Madero, Buenos Aires