2770
For all the wealth it has been accumulating , however , Norway , like the rest of Europe 's aging societies , is looking to a future in which retirees living longer and longer lives will rely on a narrower and narrower base of taxpayers to support them .
 location contains: Europe, Norway
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:  Europe, Norway 
Answer:
 location contains: Europe, Norway