12001
Four decades ago , on March 7 , 1965 , Alabama state troopers and sheriff 's deputies brutally attacked a group of civil rights demonstrators who were attempting to cross the Edmund Pettus Bridge in Selma , Ala. , setting upon them with clubs , bullwhips , cattle prods and tear gas .
 location contains: Alabama, Selma
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:  Alabama, Selma 
Answer:
 location contains: Alabama, Selma