CREATE TABLE "references" (
  "ship" text,
  "built_as" text,
  "reclassified_as" text,
  "class" text,
  "commissioned_decommissioned" text,
  "nvr_link" text
);

Question: Where the ship is Dahlgren what is the build as?
SQL: SELECT "built_as" FROM "references" WHERE "ship"='dahlgren';

Question: Where the NRV link is CGN38, what is the reclassified as?
SQL: SELECT "reclassified_as" FROM "references" WHERE "nvr_link"='cgn38';

Question: Where the built as is DLG-23, what is the class?
SQL: SELECT "class" FROM "references" WHERE "built_as"='dlg-23';