Table: election_results_2005
Columns: dist
democratic_coalition
alliance
together_we_can_do_more
independent_regional_force
independents

Question: What is the democratic coalation when together we can do more is sergio castro ( pc )?
SQL: SELECT "democratic_coalition" FROM election_results_2005 WHERE "together_we_can_do_more" = 'Sergio Castro ( PC )'

Question: What is the independent regional force when alliance is (r) iván norambuena ( udi )?
SQL: SELECT "independent_regional_force" FROM election_results_2005 WHERE "alliance" = '(R) Iván Norambuena ( UDI )'

Question: Who is the together we can do more when democratic coalition is rené alinco ( ppd )?
SQL: SELECT "together_we_can_do_more" FROM election_results_2005 WHERE "democratic_coalition" = 'René Alinco ( PPD )'

Question: Who is the independent regional force when democratic coalition is (r) jorge tarud ( ppd )?
SQL: SELECT "independent_regional_force" FROM election_results_2005 WHERE "democratic_coalition" = '(R) Jorge Tarud ( PPD )'