13142
 Bob Casey , the Pennsylvania Democrat who appears likely to unseat Senator Rick Santorum , a Republican , sits on the stoop of his home in Scranton , Pa. , in his final advertisement and talks about binding up the wounds of the bitter campaign . '' 
 location contains: Pennsylvania, Scranton
Given options, please tell me the relationships of all the listed entity pairs.Output format is "relation1: word1, word2; relation2: word3, word4". 
Option: nationality, country capital, place of death, children, location contains, place of birth, place lived, administrative division of country, country of administrative divisions, company, neighborhood of, company founders 
Text: {0} 
 Entity Pairs:  Pennsylvania, Scranton 
Answer:
 location contains: Pennsylvania, Scranton