43237
What you see is really the tip of the iceberg , '' said Gary N. Chaison , a labor relations expert at Clark University in Worcester , Mass. '' Right now , I think most unions are negotiating defensively , trying to protect past gains .
 location contains: Worcester, Clark University
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:  Worcester, Clark University 
Answer:
 location contains: Worcester, Clark University