7699
The district 's population is about 60 percent black , and many black officials in Brooklyn have worried that a crowded Democratic field of candidates would pave the way for Mr. Yassky to win the seat , which has been held by black politicians since Shirley Chisholm in the 1960 's .
 place of birth: Shirley Chisholm, Brooklyn
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:  Shirley Chisholm, Brooklyn 
Answer:
 place of birth: Shirley Chisholm, Brooklyn