19530
Mr. Layne had led his own company , Seven 2 Sports Marketing , Boston , and before that was executive vice president for marketing and sales at the Boston Celtics .
 sports team location of teams: Boston, Boston Celtics; sports team of location: Boston Celtics, Boston
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:  Boston, Boston Celtics; Boston Celtics, Boston 
Answer:
 sports team location of teams: Boston, Boston Celtics; sports team of location: Boston Celtics, Boston