CREATE TABLE "wide_receivers" (
  "player" text,
  "rec" real,
  "yards" real,
  "avg" real,
  "td_s" real
);

Question: What is the average reception of the player with 4 touchdowns and less than 171 yards?
SQL: SELECT AVG("rec") FROM "wide_receivers" WHERE "td_s"=4 AND "yards"<171;

Question: What is the average that has more than 0 touchdowns and more than 135 yards?
SQL: SELECT "avg" FROM "wide_receivers" WHERE "td_s">0 AND "yards">135;