43513
Another big carrier is Delta Air Lines , whose chief executive , Gerald Grinstein , was aboard a relief flight from Atlanta that brought cots , water and supplies for rescue teams .
 person of company: Gerald Grinstein, Delta Air Lines
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:  Gerald Grinstein, Delta Air Lines 
Answer:
 person of company: Gerald Grinstein, Delta Air Lines