50388
The base , near the St. Gotthard Pass on the route between northern Europe and Italy , was a result of two world wars that prompted neutral Switzerland to construct bunkers , storerooms and barracks inside the granite mountains to serve as an ultimate refuge in case of an invasion .
 location contains: Europe, Italy; location contains: Europe, Switzerland
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, Italy; Europe, Switzerland 
Answer:
 location contains: Europe, Italy; location contains: Europe, Switzerland