What is the lowest number of silver medals received by Austria when they receive more than 3 total medals, more than 22 bronze medals, and fewer than 395 gold medals?
CREATE TABLE "medal_table" (
  "rank" text,
  "nation" text,
  "gold" real,
  "silver" real,
  "bronze" real,
  "total" real
);
SELECT MIN("silver") FROM "medal_table" WHERE "total">3 AND "bronze">22 AND "gold"<395 AND "nation"='austria';