CREATE TABLE "regular_and_capital_gains_tax_rates_for_" (
  "marginal_ordinary_income_tax_rate" text,
  "single" text,
  "married_filing_jointly_or_qualified_widow_er" text,
  "married_filing_separately" text,
  "head_of_household" text
);

Question: What is ithe range for married filing separately where head of household is $117,451–$190,200?
SQL: SELECT "married_filing_separately" FROM "regular_and_capital_gains_tax_rates_for_" WHERE "head_of_household"='$117,451–$190,200';

Question: What is the amount of marginal ordinary income tax rate for single in which the range is $8,351– $33,950?
SQL: SELECT COUNT("marginal_ordinary_income_tax_rate") FROM "regular_and_capital_gains_tax_rates_for_" WHERE "single"='$8,351– $33,950';

Question: What is the range for married filing separately in which the head of household is $117,451–$190,200?
SQL: SELECT "married_filing_separately" FROM "regular_and_capital_gains_tax_rates_for_" WHERE "head_of_household"='$117,451–$190,200';

Question: What is the range of married filing jointly or qualified widower in which married filing separately is $33,951–$68,525?
SQL: SELECT "married_filing_jointly_or_qualified_widow_er" FROM "regular_and_capital_gains_tax_rates_for_" WHERE "married_filing_separately"='$33,951–$68,525';

Question: What is the range of the head of household whereas single is $171,551–$372,950?
SQL: SELECT "head_of_household" FROM "regular_and_capital_gains_tax_rates_for_" WHERE "single"='$171,551–$372,950';

Question: What is the amoun of marginal ordinary income tax rate where married filing jointly or qualified widow is $208,851–$372,950?
SQL: SELECT COUNT("marginal_ordinary_income_tax_rate") FROM "regular_and_capital_gains_tax_rates_for_" WHERE "married_filing_jointly_or_qualified_widow_er"='$208,851–$372,950';