30930
She came to the Williamstown Theater Festival in northern Massachusetts a few years after it opened , in 1955 , and continued to return throughout the 1960 's and 70 's , playing the leading roles in '' A Streetcar Named Desire , '' '' The Skin of Our Teeth '' and '' Nude With Violin . ''
 location contains: Massachusetts, Williamstown
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:  Massachusetts, Williamstown 
Answer:
 location contains: Massachusetts, Williamstown