Which Round has a NHL team of edmonton oilers and a Player of vyacheslav trukhno?
CREATE TABLE "draft_picks" (
  "round" real,
  "player" text,
  "nationality" text,
  "nhl_team" text,
  "college_junior_club_team_league" text
);
SELECT AVG("round") FROM "draft_picks" WHERE "nhl_team"='edmonton oilers' AND "player"='vyacheslav trukhno';