Table schema:
CREATE TABLE table_11647327_2 (married_filing_jointly_or_qualified_widow_er_ VARCHAR, married_filing_separately VARCHAR)

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 table_11647327_2 WHERE married_filing_separately = "$33,951–$68,525"