CREATE TABLE table_55438 ("Congress" TEXT, "Short title" TEXT, "Bill number ( s ) " TEXT, "Date introduced" TEXT, "Sponsor ( s ) " TEXT, "# of cosponsors" FLOAT)

Who was the sponsor for the bill introduced February 28, 2005 with cosponsors less than 200?
SELECT "Sponsor(s)" FROM table_55438 WHERE "# of cosponsors" < '200' AND "Date introduced" = 'february 28, 2005'
SELECT "Sponsor(s)" FROM "table_55438" WHERE "# of cosponsors" < '200' AND "Date introduced" = 'february 28, 2005'