CREATE TABLE table_38005 ("Unit" CLOB, "Russian" CLOB, "Ratio" CLOB, "Metric value" CLOB, "Avoirdupois value" CLOB)

What Avoirdupois value has a Russian of ?
SELECT "Avoirdupois value" FROM table_38005 WHERE "Russian" = 'берковец'
SELECT "Avoirdupois value" FROM "table_38005" WHERE "Russian" = 'берковец'