CREATE TABLE "ordinary_system" (
  "unit" text,
  "russian" text,
  "ratio" text,
  "metric_value" text,
  "avoirdupois_value" text
);

Question: What Metric value has a Unit of dolia?
SQL: SELECT "metric_value" FROM "ordinary_system" WHERE "unit"='dolia';

Question: What Russian has a Ratio of 40?
SQL: SELECT "russian" FROM "ordinary_system" WHERE "ratio"='40';

Question: What Avoirdupois value has a Russian of берковец?
SQL: SELECT "avoirdupois_value" FROM "ordinary_system" WHERE "russian"='берковец';

Question: What Russian has an Avoirdupois value of 0.686 gr?
SQL: SELECT "russian" FROM "ordinary_system" WHERE "avoirdupois_value"='0.686 gr';

Question: What Unit has a Ratio of 1/32?
SQL: SELECT "unit" FROM "ordinary_system" WHERE "ratio"='1/32';

Question: What Ratio has a Unit of zolotnik?
SQL: SELECT "ratio" FROM "ordinary_system" WHERE "unit"='zolotnik';