What team was Sigachev on when he had 38 points? 
CREATE TABLE "career_summary" (
  "season" real,
  "series" text,
  "team_name" text,
  "races" real,
  "wins" real,
  "points" text,
  "final_placing" text
);
SELECT "team_name" FROM "career_summary" WHERE "points"='38';