CREATE TABLE "references" (
  "village_german" text,
  "village_slovene" text,
  "number_of_people_1991" real,
  "percent_of_slovenes_1991" text,
  "percent_of_slovenes_1951" text
);

Question: What was the percent of slovenes 1951 for bach?
SQL: SELECT "percent_of_slovenes_1951" FROM "references" WHERE "village_german"='Bach';