What is No. 5, when No. 2 is Olivia, when No. 4 is Ava, and when No. 6 is Abigail?
CREATE TABLE "female_names" (
  "region_year" text,
  "no_1" text,
  "no_2" text,
  "no_3" text,
  "no_4" text,
  "no_5" text,
  "no_6" text,
  "no_7" text,
  "no_8" text,
  "no_9" text,
  "no_10" text
);
SELECT "no_5" FROM "female_names" WHERE "no_2"='olivia' AND "no_4"='ava' AND "no_6"='abigail';