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A native of Pittsburgh , Gradkowski played in the same high school league that has produced an impressive array of quarterbacks : Joe Montana , Joe Namath , Dan Marino , Johnny Lujack , George Blanda and Terry Hanratty .
 place of birth: Dan Marino, Pittsburgh
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:  Dan Marino, Pittsburgh 
Answer:
 place of birth: Dan Marino, Pittsburgh