Table: european_parliament_polls_2009
Columns: polling_firm
date
psd_pc
udmr
elena_b_sescu
others
undecided

Question: What is the psd-pc for 18-22/04/2009?
SQL: SELECT "psd_pc" FROM european_parliament_polls_2009 WHERE "date" = '18-22/04/2009'

Question: What date has the others of 2%?
SQL: SELECT "date" FROM european_parliament_polls_2009 WHERE "others" = '2%'

Question: What was the UDMR for 18-22/04/2009?
SQL: SELECT "udmr" FROM european_parliament_polls_2009 WHERE "date" = '18-22/04/2009'

Question: When the other is n/a and the psc-pc is 30% what is the date?
SQL: SELECT "date" FROM european_parliament_polls_2009 WHERE "others" = 'n/a' AND "psd_pc" = '30%'

Question: What was the polling firm with others of 1%?
SQL: SELECT "polling_firm" FROM european_parliament_polls_2009 WHERE "others" = '1%'

Question: What is the elena basescu when the poling firm of gallup?
SQL: SELECT "elena_b_sescu" FROM european_parliament_polls_2009 WHERE "polling_firm" = 'gallup'