What Avoirdupois value has a Russian of берковец?
CREATE TABLE table_name_37 (avoirdupois_value VARCHAR, russian VARCHAR)
SELECT avoirdupois_value FROM table_name_37 WHERE russian = "берковец"
### Context: CREATE TABLE table_name_37 (avoirdupois_value VARCHAR, russian VARCHAR) ### Question: What Avoirdupois value has a Russian of берковец? ### Answer: SELECT avoirdupois_value FROM table_name_37 WHERE russian = "берковец"