CREATE TABLE table_34528 ("Date" TEXT, "Visitor" TEXT, "Score" TEXT, "Home" TEXT, "Decision" TEXT, "Attendance" FLOAT, "Record" TEXT)

Who is the visitor in Philadelphia on March 6?
SELECT "Visitor" FROM table_34528 WHERE "Home" = 'philadelphia' AND "Date" = 'march 6'
SELECT "Visitor" FROM "table_34528" WHERE "Date" = 'march 6' AND "Home" = 'philadelphia'