What was CTE Racing-hvm's Best with a Qual 2 of 50.312?
CREATE TABLE "qualifying_results" (
  "name" text,
  "team" text,
  "qual_1" text,
  "qual_2" text,
  "best" real
);
SELECT "best" FROM "qualifying_results" WHERE "team"='cte racing-hvm' AND "qual_2"='50.312';