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To the Editor : I was astonished that James Brooke in '' Change Comes to a Wild Island at Russia 's Edge '' -LRB- Explorer : Sakhalin , Oct. 30 -RRB- did not explain an important aspect of the history of Sakhalin Island -- including why a mountain there is named for the writer Anton Chekhov .
 Anton Chekhov, Russia; Anton Chekhov, Sakhalin
Please list all entity pairs containing a certain relationship in the given options.Output format is "word1, word2; 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} 
Answer:
 Anton Chekhov, Russia; Anton Chekhov, Sakhalin