CREATE TABLE "namur" (
  "location" text,
  "name_of_mill" text,
  "type" text,
  "built" text,
  "notes" text
);

Question: What are the Notes of the Mill Built in the 19th Century?
SQL: SELECT "notes" FROM "namur" WHERE "built"='19th century';

Question: What is the Type of Mill at Molen de Stud?
SQL: SELECT "type" FROM "namur" WHERE "name_of_mill"='molen de stud';

Question: What is the Name of the Mill Built in 1802?
SQL: SELECT "name_of_mill" FROM "namur" WHERE "built"='1802';

Question: What is the Location of the Mill Built in the Early 19th Century?
SQL: SELECT "location" FROM "namur" WHERE "built"='early 19th century';