CREATE TABLE "polling" (
  "source" text,
  "date" text,
  "clinton" text,
  "obama" text,
  "undecided" text
);

Question: What kind of Obama that has a Source of rasmussen reports?
SQL: SELECT "obama" FROM "polling" WHERE "source"='rasmussen reports';

Question: Which Source has a Undecided of 2%?
SQL: SELECT "source" FROM "polling" WHERE "undecided"='2%';

Question: What kind of Obama has a Undecided of 1%?
SQL: SELECT "obama" FROM "polling" WHERE "undecided"='1%';

Question: When has a Source of surveyusa and a Obama of 54%?
SQL: SELECT "date" FROM "polling" WHERE "source"='surveyusa' AND "obama"='54%';

Question: When has a Source of rasmussen reports?
SQL: SELECT "date" FROM "polling" WHERE "source"='rasmussen reports';

Question: Which Source has a Clinton of 39% and a Undecided of 7%?
SQL: SELECT "source" FROM "polling" WHERE "clinton"='39%' AND "undecided"='7%';