CREATE TABLE table_11647327_2 (married_filing_separately VARCHAR, head_of_household VARCHAR)

What is ithe range for married filing separately where head of household is $117,451 $190,200?
SELECT married_filing_separately FROM table_11647327_2 WHERE head_of_household = "$117,451–$190,200"
SELECT "married_filing_separately" FROM "table_11647327_2" WHERE "$117,451–$190,200" = "head_of_household"