While 57 percent of the population supported negotiations with ETA ( Basque Homeland and Freedom ) , 30 percent opposed it , the survey by the state-controlled Centre for Sociological Studies ( CIS ) found .
<response> While 57 percent of the population supported negotiations with <organization>ETA</organization> ( <organization>Basque Homeland and Freedom</organization> ) , 30 percent opposed it , the survey by the state-controlled <organization>Centre for Sociological Studies</organization> ( <organization>CIS</organization> ) found . </response>