What's the patent number when it was mutated from Yakata 7001 and a standard habit?
CREATE TABLE "mutant_cultivars" (
  "date" text,
  "inventor" text,
  "marketed_as" text,
  "mutated_from" text,
  "assignee" text,
  "habit" text,
  "pattern" text,
  "earlier" text,
  "color" text,
  "plant_patent_number" text
);
SELECT "plant_patent_number" FROM "mutant_cultivars" WHERE "habit"='standard' AND "mutated_from"='yakata 7001';