What is the total engine capacity of the a4 transmission, which has an urban mpg-US greater than 19, an mpg-us extra-urban greater than 38.6, and an aveo model?
CREATE TABLE "see_also" (
  "manufacturer" text,
  "model" text,
  "transmission" text,
  "engine_capacity" real,
  "fuel_type" text,
  "l_100km_urban_cold" real,
  "l_100km_extra_urban" real,
  "l_100km_combined" real,
  "mpg_uk_urban_cold" real,
  "mpg_uk_extra_urban" real,
  "mpg_uk_combined" real,
  "mpg_us_urban" real,
  "mpg_us_extra_urban" real,
  "mpg_us_combined" real,
  "co_2_g_km" real,
  "green_rating" text
);
SELECT COUNT("engine_capacity") FROM "see_also" WHERE "transmission"='a4' AND "mpg_us_urban">19 AND "mpg_us_extra_urban">38.6 AND "model"='aveo';