Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_45 (rank INTEGER, nation VARCHAR, bronze VARCHAR)
### Question:
What is the sum of a rank whose nation is West Germany and has bronze larger than 0?
### Answer:
SELECT SUM(rank) FROM table_name_45 WHERE nation = "west germany" AND bronze > 0