what is the most silver when the event is 2008 summer paralympics and bronze is less than 1?
CREATE TABLE "summer_paralympics" (
  "event" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MAX("silver") FROM "summer_paralympics" WHERE "event"='2008 summer paralympics' AND "bronze"<1;