What is the latitude for a crater with a diameter of 12.8 km and a longitude of 208?
CREATE TABLE "x" (
  "name" text,
  "latitude" real,
  "longitude" real,
  "diameter_km" real,
  "named_after" text
);
SELECT AVG("latitude") FROM "x" WHERE "diameter_km"<12.8 AND "longitude"<208;