20461
At their peak , the Pennsylvania , Erie and other railroads owned a third of the city 's property , paid a third of its taxes and provided thousands of jobs and other benefits to its residents .
 location contains: Pennsylvania, Erie
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:  Pennsylvania, Erie 
Answer:
 location contains: Pennsylvania, Erie