CREATE TABLE table_name_91 (tournament VARCHAR)

What is the 2007 result when the 2010 result was 2r, at the US Open?
SELECT 2007 FROM table_name_91 WHERE 2010 = "2r" AND tournament = "us open"
SELECT 2007 FROM "table_name_91" WHERE "2r" = 2010 AND "tournament" = "us open"