CREATE TABLE "legislative_history" (
  "congress" text,
  "short_title" text,
  "bill_number_s" text,
  "date_introduced" text,
  "sponsor_s" text,
  "num_of_cosponsors" real
);

Question: Who was the sponsor for the bill introduced February 28, 2005 with cosponsors less than 200?
SQL: SELECT "sponsor_s" FROM "legislative_history" WHERE "num_of_cosponsors"<200 AND "date_introduced"='february 28, 2005';