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To the Editor : Regarding '' Lviv , Ukraine : Heritage Survives a Complicated Past '' -LRB- Next Stop , July 23 -RRB- , it surely must be naivete on the part of the Travel section that in celebrating Lviv 's jolly inhabitants and its fascinating architecture , and enumerating its complicated past , the article omits the inclusion of the Janowska labor and extermination camp where tens of thousands died , in the custody of the Nazis and their enthusiastic Ukrainian collaborators .
 location contains: Ukraine, Lviv; location contains: Ukraine, Lviv
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:  Ukraine, Lviv; Ukraine, Lviv 
Answer:
 location contains: Ukraine, Lviv; location contains: Ukraine, Lviv