Table: election_polls_2013
Columns: date_s_released
polling_institute
nationalist
labour
democratic_alternative
undecided_no_answer
lead

Question: Which polling institute showed a lead of 6%?
SQL: SELECT "polling_institute" FROM election_polls_2013 WHERE "lead" = '6%'

Question: Which date released had a Democratic Alternative value of 1% and Labour of 34%?
SQL: SELECT "date_s_released" FROM election_polls_2013 WHERE "democratic_alternative" = '1%' AND "labour" = '34%'

Question: What is the Nationalist share of the poll for the response in which Undecided/No Answer received 29.2%?
SQL: SELECT "nationalist" FROM election_polls_2013 WHERE "undecided_no_answer" = '29.2%'

Question: What is the value of the Democratic Alternative for the poll released by Malta Today?
SQL: SELECT "democratic_alternative" FROM election_polls_2013 WHERE "polling_institute" = 'malta today'

Question: Which polling institute showed a lead of 12% and a Labour share of the poll at 40.2%?
SQL: SELECT "polling_institute" FROM election_polls_2013 WHERE "lead" = '12%' AND "labour" = '40.2%'